TM-55-1520-228-PM

TM-55-1520-228-PM
TM 55-1520-228-PM
TECHNICAL MANUAL
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
This manual supersedes those portions of TM 55-1520-228-PMS,
24 September 1976, that pertain to Periodic Inspections.
HEADQUARTERS, DEPARTMENT OF THE ARMY
1 SEPTEMBER 1978
TM 55-1520-228-PM
C 25
CHANGE
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 25 July 2005
NO. 25
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
TM 55-1520-228-PM, 1 September 1978, is changed as follows:
1. Remove and insert pages as indicated below. New or changed text material is indicated by a vertical
bar in the margin. An illustration change is indicated by a miniature pointing hand.
Remove Pages
Insert Pages
--------------------1-3 and 1-4
2-23 and 2-24
2-31 and 2-32
A and B
1-3 and 1-4
2-23 and 2-24
2-31 and 2-32
2. Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
PETER J. SCHOOMAKER
General, United States Army
Chief of Staff
Official:
SANDRA R. RILEY
Administrative Assistant to the
Secretary of the Army
0516604
DISTRIBUTION:
To be distributed in accordance with Initial distribution Number (IDN) 310232,
requirements for TM 55-1520-228-PM.
URGENT
TM 55-1520-228-PM
CHANGE
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 17 JUNE 1996
NO. 23
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
TM 55-1520-228-PM, 1 September 1978, is changed as follows:
1. Remove and insert pages as indicated below. New or changed text material is indicated by a vertical bar
in the margin. An illustration change is indicated by a miniature pointing hand.
Remove pages
Insert pages
1-1 through 1-8
1-13 and 1-14
1-15/(1-16 blank)
2-1 and 2-2
2-5 and 2-6
2-23 and 2-24
2-45 and 2-46
.....
1-1 through 1-4
1-13 and 1-14
- - - - - - -
DA Forms 2028
2-1 and 2-2
2-5 and 2-6
2-23 and 2-24
2-45 and 2-46
Electronic 2028 Instructions
DA Forms 2028
2. Retain this sheet in front of manual for reference purposes.
URGENT
TM 55-1520-228-PM
By Order of the Secretary of the Army:
DISTRIBUTION:
To be distributed in accordance with DA Form 12-31-E, block no. 0232, requirements for
TM 55-1520-228-PM.
URGENT
TM 55-1520-228-PM
C 22
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 12 AUGUST 1993
CHANGE
NO. 22
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
DISTRIBUTION STATEMENT A:
Approved for public release; distribution is unlimited.
TM 55-l520-228-PM, 1 September 1978, is changed as follows:
1.
2.
Remove and insert pages as indicated below. New or changed text material is
indicated by a vertical bar in the margin. An illustration change is indicated
by a miniature pointing hand.
Remove pages
Insert pages
1–3 through 1-6
1-13 and 1-14
2-1 and 2-2
2-11 and 2-12
2-17 and 2-18
2-23 and 2-24
2-41 and 2-42
2-49 and 2-50
1–3 through 1-6
1-13 and 1-14
2-1 and 2-2
2-11 and 2-12
2-17 and 2-18
2-23 and 2-24
2-41 and 2-42
2-49 and 2-50
Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
GORDON R. SULLIVAN
General, United States Army
Chief of Staff
Official:
MILTON H. HAMILTON
Administrative Assistant to the
Secretary of the Army
04902
DISTRIBUTION:
To be distributed in accordance with DA Form 12-31-E, block no. 0232, requirements for TM 55-1520-228-PM.
TM 55-1520-228-PM
C 21
CHANGE
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 31 December 1992
NO. 21
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
TM 55-l520-228-PM, 1 September 1978, is charged aS follows:
Approved for public release; distribution is unlimited
1. Remove and insert pages as indicated below. New or changed text material
is indicated by a vertical bar in the margin. An illustration change is indicated
by a miniature pointing hand.
2.
Remove pages
Insert pages
2-1 and 2-2
2-17 and 2-18
2-46.1 and 2-46.2
2-1 and 2-2
2-17 and 2-18
2-46.1 and 2-46.2
Retain this
sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
GORDON R. SULLIVAN
General, United States Army
Chief of Staff
MILTON H. HAMILTON
Administrative Assistant to the
Secretary of the Army
03171
DISTRIBUTION:
To be distributed in accordance with DA Form 12-31-E, block no. 0232, requirements for TM 55-1520-228-PM.
TM 55-1520-228-PM
C 20
CHANGE
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 22 August 1991
NO. 20
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
TM 55-1520-228-PM. 1 September 1978, is changed as follows:
1. Remove and insert pages as indicated below. New or changed text material
is indicated by a vertical bar in the margin. An illustration change is indicated
by a miniature pointing hand.
Remove pages
Insert pages
and 2-16
2-17 and 2-18
2-47 and 2-48
2-15 and 2-16
2-17 and 2-18
2-47 and 2-48
2-15
2.
Retain this
sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
GORDON R. SULLIVAN
Official:
General, United States Army
Chief of Staff
PATRICIA P. HICKERSON
Colonel, United States Army
The Adjutant General
DISTRIBUTION:
To be distributed in accordance with DA Form 12-31-E, block no. 0232, PM requirements for TM 55-1520-228-PM.
TM 55-1520-228-PM
C 19
CHANGE
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 4 April 1991
NO. 19
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
TM 55-1520-228–PM, 1 September 1978, is changed as follows:
1. Disregard Change 18. Page 16 was inadvertently printed on page 17.
Change 19 will correct this error.
2. Remove and insert pages as indicated below. New or changed text material
is indicated by a vertical bar in the margin. An illustration change is indicated
by a miniature pointing hand.
3.
Remove pages
Insert pages
2-15 and 2-16
2–17 and 2-18
2-15 and 2-16
2-17 and 2-18
Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
CARL E. VUONO
Official:
General, United States Army
Chief of Staff
THOMAS F. SIKORA
Brigadier General, United States Army
The Adjutant General
DISTRIBUTION :
To be distributed in accordance with DA Form 12-31-E, block no. 0187, PM mainte–
nance requirements for TM 55-1520-228-PM.
URGENT
TM 55-l520-228-PM
C 18
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 22 February 1991
CHANGE
NO. 18
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
TM 55-1520-228-PM, 1 September 1978, is changed as follows:
1. Remove and insert pages as indicated below. New or changed text material
is indicated by a vertical bar in the margin. An illustration change is indicated
by a miniature pointing hand.
Remove pages
Insert pages
1-5 and 1-6
2-16 and 2-17
1-5 and 1-6
2-16 and 2-17
Retain this sheet in front of manual for reference purposes.
2.
By Order of the Secretary of the Army:
CARL E. VUONO
General, United States Army
Chief of Staff
Official:
THOMAS F. SIKORA
Brigadier General, United States Army
The Adjutant General
DISTRIBUTION :
To be distributed in accordance with DA Form 12-31-E, block no 0232 PM requirements for TM 55-1520-228-PM.
URGENT
TM 55-1520-228-PM
C 17
CHANGE
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 18 October 1990
NO. 17
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
TM 55-1520-228-PM, 1 September 1978, is changed as follows:
1.
Remove and insert pages as indicated below. New or changed text material
is indicated by a vertical bar in the margin. An illustration change is indicated
by a miniature pointing hand.
2.
Remove pages
Insert pages
1-1 through 1-4
2-1 and 2-2
2-4.1/2-4.2
2-5 and 2-6
2-9 through 2-16
2-17 through 2-20
2-21 through 2-34
2-37 through 2-46
2-46.1/2-46.2
2-47 through 2-50
1-1 through 1-4
2-1 and 2-2
2-4.1/2-4.2
2-5 and 2-6
2-9 through 2-16
2-17 through 2-20
2-21 through 2-34
2-37 through 2-46
2-46.1/2-46.2
2-47 through 2-50
Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
CARL E. VUONO
Official:
General, United States Army
Chief of Staff
THOMAS F. SIKORA
Brigadier General, United States Army
The Adjutant General
DISTRIBUTION:
To be distributed in accordance with DA Form 12-31, PM requirements for OH-58A
and OH-58C Helicopter, Observation.
TM 55-1520-228-PM
C 16
CHANGE
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 31 May 1990
NO. 16
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
TM 55-1520-228-PM, 1 September 1978, is changed as follows:
1. Remove and insert pages as indicated below. New or changed text material
is indicated by a vertical bar in the margin. An illustration change is indicated
by a miniature hand.
2.
Remove pages
Insert pages
1-13 through 1-15/1-16
2-4.1/2-4.2
2-5 and 2-6
2-17 and 2-18
2-21 through 2-24
2-31 and 2-32
2-37 through 2-40
1-13 through 1-15/1-16
2-4.1/2-4.2
2-5 and 2-6
2-17 and 2-18
2-21 through 2-24
2-31 and 2-32
2-37 through 2-40
Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
CARL E. VUONO
Official:
General, United States Army
Chief of Staff
WILLIAM J. MEEHAN II
Brigadier General, United States Army
The Adjutant Genenal
DISTRIBUTION :
To be distributed in accordance with DA Form 12-31, PM Maintenance requirements
for OH-58A and OH-58C Helicopter, Observation.
TM 55–l52O-228-PM
C 15
CHANGE
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 14 October 1988
NO. 15
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
TM 55-1520-228-PM, 1 September 1978, is changed as follows:
1. Remove and insert pages as indicated below. New or changed text material
is indicated by a vertical bar in the margin. An illustration change is indicated
by a miniature hand.
2.
Remove pages
Insert pages
1-3 through 1-6
1-9 and 1-10
1-13 and 1-14
2-1 through 2-4
2-9 and 2-10
2-15 and 2-16
- - 2-21 and 2-22
2-25 and 2-26
2-31 and 2-32
2-35 and 2-36
2-41 and 2-42
2-45 and 2-46
2-46.1/2-46.2
1-3 through 1-6
1-9 and 1-10
1-13 and 1-14
2-1 through 2-4
2-9 and 2-10
2-15 and 2-16
2-16.1/2-16.2
2-21 and 2-22
2-25 and 2-26
2-31 and 2-32
2-35 and 2-36
2-41 and 2–42
2-45 and 2-46
2-46.1/2-46.2
Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
CARL E. VUONO,
Official:
General, United States Army
Chief of Staff
WILLIAM J. MEEHAN II
Brigadier General, United States Army
The Adjutant General
DISTRIBUTION :
To be distributed in accordance with DA Form 12-31, PM requirements for OH-58A
and OH-58C Helicopter, Observation.
URGENT
TM 55-1520-228-PM
C 14
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 10 November 1987
CHANGE
NO. 14
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
TM 55-1520-228-PM, 1 September 1978, is changed as follows:
1. Remove and insert pages as indicated below. New or changed text material
is indicated by a vertical bar in the margin. An illustration change is indicated
by a miniature pointing hand.
2.
Remove pages
Insert pages
2-25 and 2-26
2-25 and 2-26
Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
CARL E. VUONO,
GeneraI, United States Army
Chief of Staff
Official:
R. L. DILWORTH
Brigadier General, United States Army
The Adjutant General
DISTRIBUTION:
To be distributed in accordance with DA Form 12-31, PM requirements for OH-58A
and OH-58C Helicopter, Observation.
URGENT
URGENT
NOTICE:
THIS CHANGE HAS BEEN PRINTED AND DISTRIBUTED OUT OF SEQUENCE. IT SHOULD
BE INSERTED IN THE MANUAL AND USED. UPON RECEIPT OF THE EARLIER SEQUENCED
CHANGE INSURE A MORE CURRENT CHANGE PAGE IS NOT REPLACED WITH A LESS
CURRENT PAGE.
TM 55-1520-228-PM
C 13
CHANGE
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 9 March 1987
NO. 13
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
TM 55-1520-228-PM, 1 September 1978, is changed as follows:
1. Remove and insert pages as indicated below. New or changed text material
is indicated by a vertical bar in the margin. An illustration change is indicated
by a miniautre pointing hand.
2.
Remove pages
Insert pages
2-37 through 2-42
2-37 through 2-42
Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
JOHN A. WICKHAM, JR.
GeneraI, United States Army
Chief of Staff
Official:
R. L. DILWORTH
Brigadier General, United States Army
The Adjutant General
DISTRIBUTION:
To be distributed in accordance with DA Form 12-31, PM Maintenance requirements
for OH-58A and OH-58C Helicopter, Observation.
URGENT
TM 55-l520-228-PM
C 12
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGSTON, D.C., 27 March 1987
CHANGE
NO. 12
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
TM 55-l52O-228-PM,
1 September 1978, is changed as follows:
1.
Remove and insert pages as indicated below. New or changed text material
is indicated by a vertical bar in the margin. An illustration change is indicated
by a miniature pointing hand.
Section II
2.
Remove pages
Insert pages
2-11 and 2-12
2-25 through 2-32
2-11 and 2-12
2-25 through 2-32
Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
JOHN A. WICKHAM, JR.
General, United States Army
Chief of Staff
Official:
R. L. DILWORTH
Brigadier General, United States Army
The Adjutant General
DISTRIBUTION:
To be distributed in accordance with DA Form 12-31, PM requirements for OH-58A
Helicopter, Observation and OH-58C Helicopter, Observation.
TM 55-1520-228-PM
C 11
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 9 January 1984
CHANGE
No. 1 1
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
TM 55-1520-228-PM, 1 September 1978, is changed as follows:
1.
Remove and insert pages as indicated below,
Section I
Section II
2.
margin.
3.
Remove pages
Insert pages
1-3 thru 1-10
1-13 and 1-14
2-11 and 2-12
2-29 thru 2-32
2-49 and 2-50
1-3 thru 1-10
1-13 and 1-14
2-11 and 2-12
2-29 thru 2-32
2-49 and 2-50
New or changed text material is indicated by a vertical bar in the
An illustration change is indicated by a miniature pointing hand.
Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
JOHN A. WICKHAM, JR.
General, United States Army
Chief of Staff
Official:
ROBERT M. JOYCE
Major GeneraI, United States Army
The Adjutant General
DISTRIBUTION:
To be distributed in accordance with DA Form 12-31, PM Maintenance Requirements
for OH-58 and OH-58C aircraft.
URGENT
TM 55-1520-228-PM
C 10
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D. C., 11 January 1983
CHANGE
No.
10
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
TM 55-1520-228-PM, 1 September 1978, is changed as follows:
1. Remove and insert pages as indicated below:
Section II
Remove pages
Insert pages
2-43 and 2-44
2-43 and 2-44
2. New or changed text material is indicated by a vertical bar in the margin. An illustration change
is indicated by a miniature pointing hand.
3. Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
E. C. MEYER
General. United States Army
Chief of Staff
Official:
ROBERT M. JOYCE
Major General, United States Army
The Adjutant General
DISTRIBUTION:
To be distributed in accordance with DA Form 12-31, PM Maintenance Requirements for OH-58 and OH58C aircraft.
URGENT
TM 55-1520-228-PM
C 9
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 29 April 1982
CHANGE
No. 9
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
TM 55-1520-228-PM, 1 September 1978, is changed as follows:
1.
Remove and insert pages as indicated below.
Section I
Section II
2.
margin.
3.
Remove pages
Insert pages
1-1 thru 1–4
2-7 thru 2-10
2-19 and 2-20
2-21 thru 2-24
2-27 and 2-28
2-31 thru 2-38
1–1 thru 1–4
2-7 thru 2-10
2-19 thru 2-20.1/2-20.2
2-21 thru 2-24
2-27 and 2-28
2-31 thru 2-39
New or changed text material is indicated by a vertical bar in the
An illustration change is indicated by a miniature pointing hand.
Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
E. C. MEYER
General, United States Army
Chief of Staff
Official:
ROBERTM.JOYCE
Brigadier General, United States Army
The Adjutant General
DISTRIBUTION:
To be distributed in accordance with DA Form 12-31, PM Maintenance Requirements
for OH-58 and OH–58C aircraft.
U.S. Government Printing Office: 1982-564-029/1166
URGENT
TM 55-1520-228-PM
C8
CHANGE
No.
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 16 November 1981
8
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
TM 55-1520-228-PM, 1 September 1978, is changed as follows:
1.
Remove and insert pages as indicated below.
Section II
Remove pages
Insert pages
2-11 and 2-12
2-39 and 2-40
2-45 and 2-46
2-11 and 2-12
2-39 and 2-40
2-45 thru 2-46.1/2-46.2
2. New or changed text material is indicated by a vertical bar in the margin.
An illustration change is indicated by a miniature pointing hand.
3.
Retain this sheet in front of manual for reference purposes.
By Order of the Secretary of the Army:
E. C. MEYER
General, United States Army
Chief of Staff
Official:
ROBERT M. JOYCE
Brigadier General, United States Army
The Adjutant General
DISTRIBUTION:
To be distributed in accordance with DA Form 12-31, PM Maintenance Requirements
for OH-58 and OH-58C aircraft.
TM 55-1520-228-PM
LIST OF EFFECTIVE PAGES
Insert latest changed pages. Dispose of superseded pages in accordance with regulations.
NOTE: On a changed page, the portion of the text affected by the latest change is indicated by a vertical
line, or other change symbol, in the outer margin of the page. Changes to illustrations are indicated by
miniature pointing hands. Changes to wiring diagrams are indicated by shaded areas.
Dates of issue for original and changed pages are:
Original …………
Change 1………
Change 2………
Change 3………
Change 4………
Change 5………
Change 6………
Change 7………
Change 8………
Change 9………
Change 10…….
Change 11…….
Change 12…….
1 September 1978
15 November 1978
3 January 1979
23 April 1980
24 April 1980
29 August 1980
13 January 1981
6 March 1981
16 November 1981
29 April 1982
11 January 1983
9 January 1984
27 March 1987
Change 13……….
Change 14 ………
Change 15…….…
Change 16……….
Change 17……….
Change 18……….
Change 19……….
Change 20……….
Change 21……….
Change 22……….
Change 23……….
Change 24……….
Change 25……….
9 March 1987
10 November 1987
14 October 1988
31 May 1990
18 October 1990
22 February 1991
4 April 1991
22 August 1991
31 December 1992
12 August 1993
17 June 1996
7 February 1997
25 July 2005
TOTAL NUMBER OF PAGES IN THIS PUBLICATION IS 104, CONSISTING OF THE FOLLOWING:
Page
No.
*Change
No.
Cover.....................................................0
A and B................................................25
1-1 ........................................................0
1-2 .......................................................23
1-3 .......................................................25
1-4 .......................................................23
1-5 through 1-8 Deleted ......................23
1-9 .........................................................0
1-10 .....................................................15
1-11 and 1-12........................................0
1-13 .....................................................22
1-14 .....................................................23
1-15 Deleted........................................16
1-16 blank Deleted ..............................16
2-1 .........................................................0
2-2 ......................................................24
2-3 and 2-4 ..........................................15
2-4.1 ....................................................17
2-4.2 blank ..........................................17
2-5 .......................................................17
2-6 .......................................................24
2-7 .........................................................0
2-8 .........................................................9
2-9 .......................................................15
2-10 .....................................................17
Page
No.
*Change
No.
2-11..................................................... 24
2-12 and 2-13...................................... 17
2-14 and 2-15........................................ 0
2-16..................................................... 20
2-16.1.................................................. 15
2-16.2 blank ........................................ 15
2-17..................................................... 22
2-18 and 2-19...................................... 17
2-20....................................................... 9
2-20.1.................................................... 9
2-20.2 blank .......................................... 9
2-21..................................................... 17
2-22....................................................... 0
2-23..................................................... 22
2-24..................................................... 25
2-25 through 2-31 ............................... 17
2-32..................................................... 25
2-33 and 2-34...................................... 17
2-35..................................................... 15
2-36....................................................... 9
2-37 through 2-41 ............................... 17
2-42....................................................... 0
2-43..................................................... 17
2-44....................................................... 0
2-45..................................................... 23
*Zero in this column indicates an original page.
C 25
A
TM 55-1520-228-PM
LIST OF EFFECTIVE PAGES (CON’T)
Page
No.
*Change
No.
2-46 .....................................................17
2-46.1 ..................................................21
2-46.2 ..................................................21
2-47 .....................................................20
2-48 and 2-49......................................17
2-50 .....................................................11
*Zero in this column indicates an original page.
B
C 25
TM 55-1520-228-PM
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 1 September 1978
OH-58A/C AIRCRAFT
PHASED MAINTENANCE CHECKLIST
WARNING
CERTAIN INSPECTIONS ARE MANDATORY SAFETY-OF-FLIGHT REQUIREMENTS, AND THE INSPECTION INTERVALS CANNOT BE EXCEEDED. IN THE EVENT THESE INSPECTIONS CANNOT
BE ACCOMPLISHED AT THE- SPECIFIED INTERVAL, THE AIRCRAFT CONDITION STATUS SYMBOL
WILL BE IMMEDIATELY CHANGED TO A RED X. MANDATORY SAFETY~OF-FLIGHT INSPECTION
ITEMS ARE PRINTED IN BOLD FACE TYPE.
NOTE
INSPECTION ITEMS CONTAINED IN THIS MANUAL ARE CONSIDERED THE MINIMUM REQUIRE.
MENTS FOR PERFORMING PHASED MAINTENANCE AND MUST BE PERFORMED. THE CUMULATIVE EFFECTS OF INSPECTION DEFERRALS ARE UNKNOWN AND COULD RESULT IN CATASTRO
PHIC FAILURE OR INCREASED MAINTENANCE AT A LATER DATE. THEREFORE, THE USE OF
SPECIAL LETTERING TO EMPHASIZE MANDATORY SAFETY-OF-FLIGHT INSPECTION ITEMS IS NOT
TO BE CONSTRUED AS AUTHORITY FOR DEFERRAL OF OTHER INSPECTIONS.
1-1
TM 55-1520-228-PM
SECTION I - GENERAL INFORMATION
1-1. PHASED SCHEDULE.
1-3. MAINTENANCE ACTIVITIES.
This phased maintenance inspection checklist contains requirements for
inspection of the OH-58 shaft on a phased schedule having a 1200 hour (flight
hours) cycle with 300 hour phases. Each requirement included herein is designated for accomplishment at least once. but not more than four times during the
1200 hour cycle.
The inspections prescribed by this checklist will be accomplished at specified
phases by Aviation Unit Maintenance (AVUM) activities with assistance of Aviation Intermediate Maintenance (AVIM) and Depot Maintenance activities when
required.
1-2. EXCEEDING THE PHASED SCHEDULE.
1-4. LIMITATIONS.
The phased maintenance inspection intervals designated are the maximum
and shall not be exceeded except in actual operational emergencies as explained
herein. It is the Commander’s responsibility to determine (on an individual aircraft basis) when inspection intervals maybe exceeded. For this purpose. operational emergencies are conditions of combat, or conditions of disaster which
necessitate flight to evacuate aircraft or personnel. Those inspections annotated
by a letter “C” in the Inspected Phase No’s column along with the DA Form
2408-18 (Equipment Inspection Record) items that are due constitute the MINIMUM mandatory inspections required on helicopters scheduled for imminent
deployment to, or stationed in a combat environment. Under no circumstances
will two combat phase inspections be performed sequentially. When aircraft are
operated beyond the normal inspection duetime because of such emergency situations. a circled red X status symbol and an appropriate statement (to include
authority) must be entered in Block 10 of DA Form 2408-13 (Aircraft Inspection
and Maintenance Record) until such time as the inspection is complete. When
inspections are delayed to meet emergency requirements, Commanders will
assure that the aircraft status symbol reverts to a red X and that delayed inspections are accomplished immediately upon termination of the actual emergency.
When unusual local conditions (utilization, type of mission personnel, periods of
inactivity, environmental conditions, etc.) dictate, it is the prerogative and
responsibility of the Maintenance 0fficer to increase the scope and/or frequency
of maintenance or inspection as necessary to insure safe operation (TM
1-1500-328-23).
The checklist does not contain instructions for repair, adjustment or other
means of rectifying conditions. Neither does it contain special tolerances, limits
or instructions for special troubleshooting to find causes for malfunctions. Such
data will be obtained from the latest issue of the aircraft’s TM 55-1520-228-23
series maintenance manuals.
1-2
1-5. CHANGEOVER TO THE PHASED MAINTENANCE
SYSTEM.
Changeover shall be accomplished in accordance with instructions provided
in TB 55-1500-337-24 entitled, “Phased Maintenance System for Army Aircraft”. The requirements of this TB must be accomplished prior to implementation of Phase 1 inspection requirements specified in this checklist.
1-6. PRE-INSPECTION MAINTENANCE TEST FLIGHT (MTF).
A pre-inspection MTT to duplicate non-hazardous equipment problems, determine unsatisfactory conditions, determine equipment operation problems, etc.,
is recommended prior to start of aircraft disassembly for phased maintenance
inspection. The decision to perform the pre-inspection MTF, however, shall be
the responsibility of the unit Maintenance Officer.
C23
TM 55-1520-228-PM
1-7.
SPECIAL INSPECTION,
LUBRICATION REQUIREMENTS.
CALENDAR
INSPECTIONS
AND
Special inspections, calendar inspections and lubrication requirements
contained in TM 55-1520-228-23 and those listed on the aircraft's DA Form
2408-18 shall be reviewed and accomplished in accordance with the
“inspection due” requirements specified in those documents.
1-8.
TIME BETWEEN OVERHAUL (TBO) AND RETIREMENT LIFE
ITEMS CHECK.
Prior to start of the applicable phased maintenance inspection, a check
will be made of components and their remaining operating hours prior to
removal. The latest issue TM 55-1520-228-23 and DA Form 2408-16 shall be
referred to for a complete listing of components and their TBO and retirement
life.
1-9.
USING THE PHASED INSPECTION CHECKLIST.
b. This checklist pertains to all OH-58 A/C aircraft and may, therefore,
contain inspection requirements applicable to specific equipment not installed
on individual aircraft. When this situation is encountered, those requirements
that are not applicable need not be performed.
PHASE NUMBERS.
In the column headed “Inspection Phase No’s” and adjacent to the
sequence number on each inspection requirement, there will appear the
word “ALL” or a series of numbers. The word “ALL” indicates that inspection
requirements shall be accomplished at each phase (or at every 300 hour
interval) of the 1200 hour cycle. The numbers represent the phase number
at which the inspection requirement is to be accomplished. For example, if
the numbers 2 and 4 are shown, this indicates that inspection requirement is
to be accomplished at phases 2 and 4 only (or at every 600 hour interval). If
only one number is indicated, then that inspection requirement is
accomplished at that phase (or at every 1200 hour interval). At the
completion of phase 4 the cycle starts over with phase 1.
FINAL RECORDS CHECK.
After all corrective actions have been completed and following
completion of the phased inspection, the Technical Inspector or designated
supervisor shall verify that all applicable forms and records have been
properly updated. A Final Records Checklist (table 1-2) is provided to ensure
forms and records have been inspected for completeness and accuracy prior
to release of the aircraft from the phased maintenance inspection. The
inspector verifying the final records check shall enter his initials adjacent to
the indicated form or record on the Final Records Checklist. The initials
entered shall be registered on the Signature Sheet (table 1-1) adjacent to
that person’s signature. Once the Final Record Check is complete, provide
electronic or hard copies of DA Form 2408-16 and 2408-16-1 to: [email protected] or mail copies to Commander, U.S. Army Aviation and
Missile Command, ATTN: AMSAM-MMC-MA-NC, Redstone Arsenal,
Alabama 35898-5230.
1-12.
a. A new checklist shall be used each time phased maintenance is due
on the aircraft. This checklist is arranged such that it can be separated by
area and distributed to the maintenance crew.
1-10.
1-11.
SIGNATURE SHEET.
All personnel performing inspection and/or maintenance tasks shall place
their signatures and initials on the signature sheet (table 1-1). The purpose
of the signature sheet is to provide a correlation between initials entered on
the individual checklist sheets and the actual names of the personnel
accomplishing these tasks.
1-13.
MAINTENANCE OPERATIONAL CHECKS.
After the completion of any required corrective actions to any of the
components of a functional system of the aircraft, maintenance operational
checks (MOC) shall be performed on that system to determine the
effectiveness of the maintenance actions performed and to verify the proper
operation of that system. These MOC shall be performed in accordance with
TM 1-1500-328-23.
1-14.
MAINTENANCE TEST FLIGHT.
When all required inspections in Section II have been accomplished and
initialed in accordance with above procedure, a daily inspection in
accordance with the TM specified in Section II will be performed on the
aircraft to permit performance of a maintenance test flight (MTF). The MTF
shall be performed in accordance with the requirements of TM 55-1520-228MTF and TM 55-1500-328-23 using the MTF form in the MTF technical
manual. A suggested maintenance test flight checksheet (figure 1-4) and a
rotor smoothing record (figure 1-5) are provided at the end of Section I.
1-3 C25
TM 55-1520-228-PM
1-15.
CHECKLIST DISPOSITION
The completion of each phase maintenance inspection shall be recorded
on DA form 2408-13 and DA Form 2408-15 as prescribed by DA PAM 738751. The signed checklist, together with all continuation sheets, shall be
attached to DA Form 2408-13, and filed for the six month period, these
records will be destroyed as prescribed by DA PAM 738-751.
1-16.
INSPECT AREAS.
Figure 1-2 reflects the inspection areas of the OH-58 aircraft. Those
areas are titled as shown. Figure 1-3 shows the location of access doors
and panels which require removal at various phased maintenance
inspections.
NOTE
1-17.
REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS.
You can help improve this manual. If you find any mistakes or if you
know of a way to improve the procedures, please let us know. Mail your
letter, DA Form 2028 (Recommended Changes to publications and Blank
Forms) or DA Form 2028-2 located in the back of this manual directly to:
Commander, U.S. Army Aviation and Missile Command, ATTN: AMSAMMMC-MA-NP, Redstone Arsenal, AL 35898-5000. A reply will be furnished
to you. You may also provide DA Form 2028 information to AMCOM via email, fax, or the World Wide Web. Our fax number is: DSN 788-6546 or
Commercial 256-842-6546. Our e-mail address is: [email protected]
Instructions for sending an electronic 2028 may be found at the back of this
manual immediately preceding the hard copy 2028. For the World Wide Web
use: https://amcom2028.redstone.army.mil.
During any inspection of the aircraft or components, the
person making the inspection should pay particular attention
to areas prone to corrosion. When corrosion is found, a
prime consideration is to evaluate what corrective action will
be required to correct the discrepancy. Corrosion repair and
treatment can be time consuming, and for this reason, early
evaluation is essential for good aircraft maintenance
planning. This evaluation will assist in determining if sheet
metal or aircraft mechanics will be necessary to make the
needed repair. In cases where corrosion has exceeded the
accept or reject criteria, material replacement will be
necessary. For material replacement refer to TM 1-1500204-23, General Aircraft Maintenance Manual. For corrosion
treatment refer to TM 55-1500-344-23, Corrosion Control for
Army Aircraft and for painting, refer to TM 55-1500-345-23,
Painting and Marking of Army Aircraft. If corrosion is found
and not covered by applicable TM’s submit a DA Form 2028,
Recommended
Changes
to
Equipment
Technical
Publications,
or
an
Equipment
Improvement
Recommendation (EIR) where a design change is
necessary.
PAGES 1-5 THROUGH 1-8 AND FIGURE 1-1 (SHEETS 1 THROUGH 3) DELETED.
1-4 C23
TM 55-1520-228-PM
Table 1-1.
Signature Sheet.
Signature of Person Accomplishing Necessary Work
Initial
Signature o f Person Accomplishing Necessary Work
Initial
Signature of Person Accomplishing Necessary Work
Initial
Signature of Person Accomplishing Necessary Work
Initial
Signature of Person Accomplishing Necessary Work
Initial
Signature of Person Accomplishing Necessary Work
Initial
Initial
Initial
Signature of Maintenance Supervisor
Initial
Signature of Technical Inspector
Initial
Signature of Maintenance Officer
Initial
1-9
TM 55-1520-228-PM
Table 1-2.
Final Records Checklist.
This checklist is provided to insure the indicated forms and records have been inspected for presence, completeness, legibility and accuracy prior to releasing the aircraft from a phase inspection. Verification
of inspection will be indicated by placing the initials of the inspector in the appropriate initial block.
1-10
C15
TM 55-1520-228-PM
Area No.
1
2
3
4
5
6
7
8
9
10
11
Area Title
Nose and Crew Compartment
Passenger Compartment
Aft Equipment Shelf
Transmission and Pylon
Main Rotor
Engine
Aft Fuselage and Avionics
Tail Boom
Tail Rotor
Tail Rotor Drive Train
Bottom Fuselage and
Landing Gear
Figure 1-2. Inspection Areas.
1-11
TM 55-1520-228-PM
1.
2.
3.
4.
5.
Crew Door
Passenger Door
Step Cover
Avionics Compartment Door
Forward Transmission Fairing
Inspection
6.
7.
8.
9.
10.
Transmission Induction Fairing
Access Door
Engine Cowl Side Panel
Oil Tank Drain Access Door
Transmission Oil Level Access Door
Engine Oil Filler Cap Access Door
11. Fuel Tank Filler Cup
12. Access Panel
1 3 . Tail Boom Inspection Panel
14. External Power Connector
Access Door
Figure 1-3. Model OH-58 Access and Inspection Provisions
1-12
1-13
C22
Figure 1-4. Suggested Format of Maintenance Test Flight Checksheet
TM 55-1520-228-PM
1-14
C23
PAGE 1-15/(1-16 BLANK) DELETED.
Figure 1-5. Suggested Format of Rotor Smoothing Record
TM 55-1520-228-PM
TM 55-1520-228-PM
SECTION II- INSPECTION CHECKLIST
NOTE
PRIOR TO START OF THE PHASED MAINTENANCE INSPECTION, IT IS RECOMMENDED THAT A
PRE-INSPECTION MAINTENANCE TEST FLIGHT (MTF) BE CONDUCTED. ACCOMPLISHMENT OF
THE MTF SHALL BE DETERMINED BY THE UNIT MAINTENANCE OFFICER. THE PRE-INSPECTION
MTF SHOULD BE CONDUCTED BY A MAINTENANCE TEST PILOT FOLLOWING A REVIEW OF THE
AIRCRAFT FORMS AND RECORDS AND A BRIEFING FROM THE REGULAR FLIGHT CREW OF THE
AIRCRAFT. THE MTF IS RECOMMENDED TO ASSESS THE AIRCRAFT PERFORMANCE AND IDENTIFY DEFICIENCIES THAT SHOULD BE CORRECTED WHILE THE AIRCRAFT IS UNDERGOING
PHASED INSPECTION.
2-1
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
PHASED MAINTENANCE CHECKLIST
GENERAL
Inspect
Inspection Requirements
Status
Phase
No’s
ALL
1. Prior to inspection, check aircraft forms and
C
records for recorded deficiencies (Table 1-2).
ALL
C
2. Check for honeycomb panel voids on
airframe prior to starting phase and submit DA
Form 2404 on voids exceeding TM limits in
accordance with TB 43-0002-3.
ALL
3. Fuel tanks shall be fully serviced prior to
start of phased inspection. If maintenance is
to be accomplished which requires defueling,
this item may be deferred until after such
maintenance is completed.
ALL
C
4. Perform avionics system inspection
checks and test in accordance with applicable
avionics systems publications.
ALL
5. Check circuit breakers, switches, and
knobs for security and proper operation.
Aircraft Serial No.
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-2 C24
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
NOSE AND CREW COMPARTMENT – 1
Inspect
Inspection Requirements
Phase
No’s
ALL
1. Crew doors jettison mechanism functionally
checked. Mechanism parts for wear,
corrosion and cracks.
ALL
2.
Armor plates for cracks, delamination and
security.
ALL
3.
Pilot/copilot seat frames for cracks,
distortion and security. Seat and seat
back covers for tears and other damage.
Installation date must be legible and
correct.
ALL
4.
Pilot and copilot safety belts for cuts and
fraying. Attachment fittings for condition,
proper operation and security.
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-3
C15
Initial
TM 55-1520-228-PM
Area Name and No.
NOSE AND CREW COMPARTMENT – 1
Inspection Requirements
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
1, 3
Aircraft Serial No.
Action Taken
5. Pilot and copilot safety belt
retarder springs for proper
operation.
ALL
6. Pilot and copilot shoulder harness
for cuts and fraying. Retarder
springs for proper operation.
Attachment fittings for condition
and security.
ALL
7. Inertia reel straps for cuts and
fraying.
1, 3
8. Pilot and copilot inertia reels for
security, binding, positive locking
and unlocking.
1, 3
9. Collective stick friction checked
using spring scale.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-4
C15
Date
Initial
TM 55-1520-228-PM
Area Name and No.
NOSE AND CREW COMPARTMENT – 1
Inspection Requirements
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
C
Aircraft Serial No.
Action Taken
9.1. All collective stick jack shaft
supports for damage.
ALL
9.2. Collective stick friction adjuster
for damage and proper operation.
ALL
10. Cyclic stick friction adjuster for
damage and proper operation.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-4.1/(2–4.2
blank) C17
Date
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
NOSE AND CREW COMPARTMENT – 1
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
C
11. Throttle control cable assembly for binding
and security.
ALL
C
12. Collective jackshaft for damage, corrosion
and security. Bearings for binding or
excessive wear.
ALL
C
13. Cyclic torque tube for cracks, distortion,
corrosion and security. Bearings for
binding or excessive wear.
ALL
C
14. Cyclic control pivot assembly for damage,
corrosion and security. Bearings for
binding or excessive wear.
ALL
C
15. FLIGHT CONTROL PUSH-PULL TUBES
FOR CHAFING, CORROSION AND
SECURITY. BEARINGS FOR BINDING
OR EXCESSIVE WEAR.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-5
C17
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
NOSE AND CREW COMPARTMENT – 1
Inspect
Inspection Requirements
Phase
No’s
ALL
16. Vulnerability reduction flight control
system bellcrank, electromechanical
cable assemblies and cannon plugs for
damage, chafing, binding and security.
(OH-58C)
ALL
16.1. Directional control pedals and bellcranks
for freedom of movement. Check pedal
adjustment for ease of operation.
1, 3
16.2. Inspect force gradient assembly IAW TM
55-1520-228-23-2,
Chapter 11.
ALL
17.
Heater air ducts for cracks, cuts, tears
and security.
ALL
18.
Instrument panel glare shield for cracks
and security.
ALL
19.
Engine and flight instruments for proper
range markings and slippage.
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-6
C24
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
NOSE AND CREW COMPARTMENT – 1
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
20. Pitot and static lines for chafing, security
and loose connections.
ALL
21. Heat control knob for condition binding
and security.
ALL
22. Electrical wiring for chafing and loose or
corroded connections.
ALL
23. Crew area floor for punctures, cracks,
bonding separation and cleanliness.
1, 3
24. Nose section structure for cracks,
corrosion and damage.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-7
Date
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
NOSE AND CREW COMPARTMENT – 1
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
25. WSPS Windshield Deflector for damage
and security.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-8
C9
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
PASSENGER COMPARTMENT– 2
Inspect
Inspection Requirements
Phase
No’s
ALL
1. Passenger doors jettison mechanism
functionally checked. Mechanism parts for
wear, corrosion and cracks.
ALL
2.
Passenger seat belts for cuts and fraying.
Attachment fittings for condition, proper
operation and security.
1, 3
3.
Passenger seat safety belt retarder
springs for proper operation.
ALL
4.
Passenger shoulder harness for cuts
and fraying. Retarder springs for proper
operation. Attachment fittings for condition
and security.
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-9
C15
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
PASSENGER COMPARTMENT – 2
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
C
5. Flight control push-pull tubes for chafing,
corrosion and security. Bearing for binding
or excessive wear. Inspect cap angles
(four long corner extrusion support angles)
for buckling and bending.
(Access Center Post)
ALL
C
6. COLLECTIVE LINK ASSEMBLY FOR
DAMAGE AND SECURITY. BEARINGS
FOR BINDING OR EXCESSIVE WEAR.
(Access Center Post)
ALL
C
7. FLIGHT CONTROL BELLCRANKS FOR
DAMAGE, CONDITION OF BEARINGS
AND SECURITY.
(Access Center Post)
ALL
C
8. Throttle control cable assembly for
condition and security.
(Access Center Post)
ALL
9. Heat control cable for condition and
security.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-10
C17
Date
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
PASSENGER COMPARTMENT – 2
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
10. Heater air ducts for cracks, cuts and
security.
ALL
11. Electrical wiring for chafing, condition and
security.
ALL
12. Passenger compartment floor for
punctures, cracks, bonding separation
and cleanliness.
1, 3
13. Passenger compartment structure for
cracks, corrosion and damage.
ALL
14. Remove seat back panel and inspect fuel
cell access area for leakage. Retorque
bolts on access cover.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-11 C24
Date
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
PASSENGER COMPARTMENT – 2
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
15. Deleted
16. Deleted
ALL
C
17. The visible portion of the four pylon
supports on the upper cabin roof beam,
including their straps (.080 - .090 thick),
which are riveted to the underside of
the supports and cabin structure, for
cracks. (Remove insulation blankets and
structural panels.)
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-12
C17
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
AFT EQUIPMENT SHELF – 3
Inspect
Inspection Requirements
Phase
No’s
ALL
1. TAIL ROTOR CONTROL PUSH-PULL
C
TUBES FOR CHAFING, CORROSION
AND SECURITY. BEARINGS FOR
BINDING OR EXCESSIVE WEAR.
ALL
C
2.
TAIL ROTOR CONTROL BELLCRANKS
FOR DAMAGE, CONDITION OF
BEARINGS AND SECURITY.
ALL
3.
Vulnerability reduction control cable for
condition and security. (OH-58C)
ALL
C
4.
Throttle control cable for condition and
security.
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-13
C17
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
AFT EQUIPMENT SHELF – 2
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
5. Heat control cable for condition and
security.
ALL
6. Heater and oil cooler air ducts for cracks,
cuts, tears and security.
ALL
7. Electrical wiring for chafing and loose or
corroded connections.
1, 3
8. Electrical system components for
condition and security.
1, 3
9. Fuselage structure for cracks, corrosion
and damage.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-14
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
TRANSMISSION AND PYLON – 4
Inspect
Inspection Requirements
Phase
No’s
ALL
1. Forward transmission fairing for cracks,
punctures and missing or stripped
fasteners. (Remove Fairing)
ALL
2.
Transmission cowling doors for cracks,
dents and alignment. Hinges and
fasteners for wear and proper operation.
ALL
3.
Induction fairing for cracks, wear and
loose or missing fasteners.
ALL
4.
Induction fairing doors for cracks, dents
and alignment. Hinges and latches for
wear and proper operation.
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-15
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
TRANSMISSION AND PYLON – 4
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
C
5.
Clean particle separator.
ALL
5.1. Sand and dust separator for cracks,
punctures, loose or missing hardware and
security. Particle ejection openings for
obstructions.
ALL
5.2. Inspect plenum chamber for air leaks:
inspect particle separator to induction
fairing for fit and sealing. Firewall to
induction fairing for fit and sealing. Inspect
bellmouth to firewall for fit and sealing.
ALL
6.
Engine air inlet bellmouth for damage and
obstructions, and plenum area for loose
or foreign objects. (Remove induction
fairing)
ALL
7.
Eductor tubes for cuts, tears, cracks and
security.
1, 3
8.
Roof skin for cracks, punctures, loose
or missing rivets. Paint for chipped or
peeling condition.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-16
C20
Date
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
TRANSMISSION AND PYLON – 4
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
9. Drag pin assembly on transmission for proper
engagement with static stop on cabin roof.
Check for damage and foreign objects in well
of static stop and spherical bearing for wear.
(Access 6)
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-16.1/(2–16.2
blank) C15
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Inspect
Phase
No’s
ALL
Area Name and No.
Aircraft Serial No.
TRANSMISSION AND PYLON – 4
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
10. Inspect isolation mount (All P/N’s) for security and
damage.
ALL
11. Transmission input quill seal for leakage.
ALL
C
12. Main drive shaft (PN 206-040-100-13) remove
and disassemble for complete inspection IAW TM
55–1520–228–23.
ALL
C
12.1.Main drive shaft P/N
SKCP2348-5(206-040-371-111) visually inspect only IAW TM 55-1520-228-23. No
disassembly authorized.
ALL
C
13. N2 torque tube assembly for distortion, corrosion
and security.
ALL
C
14. N2 push-pull rod for damage, binding, worn
bearings and security.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-17
C22
Date
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
TRANSMISSION AND PYLON – 4
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
15. Hydraulic servo actuator support for cracks,
corrosion and security.
ALL
16. Hydraulic system servo actuators for excessive
leakage and security.
ALL
17. Servo actuator slotted head bolts through pilot
input lever (sloppy links) for freedom to rotate
and security.
ALL
C
18. Exposed portion of hydraulic piston rods wiped
clean and lightly lubricated using a soft cloth
moistened with preservative hydraulic fluid.
ALL
19. Hydraulic lines for chafing, leakage and
security of connections.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-18
C17
Date
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
TRANSMISSION AND PYLON – 4
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
C
20. Flight control push-pull tubes for damage,
binding or worn bearings and security.
ALL
C
21. Flight control bellcranks for damage, condition
of bearings security.
ALL
C
22. Collective lever (at transmission) for cracks,
corrosion and security. Bearings for binding or
excessive wear.
ALL
C
23. Transmission oil lines for chafing, leakage and
security of connections.
ALL
24. WSPS Upper Cutter Assembly for damage
and security.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-19
C17
Date
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
TRANSMISSION AND PYLON – 4
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
1, 3
25. Pylon support links for cracks, wear and
security.
1, 3
26. Torque, pylon support fittings, mounting nuts.
ALL
27. Swashplate and support assembly for visible
damage and security. Connecting linkage for
binding or worn bearings.
ALL
28. Main rotor mast seal. Check at swashplate
support drain holes for evidence of leakage.
ALL
29. Swashplate boot for cuts, tears, deterioration
and security.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-20
C9
Date
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
TRANSMISSION AND PYLON – 4
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
30. Swashplate uniball for specified friction.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-20.1/(2–20.2
blank) C9
Date
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
TRANSMISSION AND PYLON – 4
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
C
31. Swashplate duplex bearing for smoothness.
Disconnect idler link and rotor pitch links. Free
lower end of boot. Rotate outer ring in both
directions.
NOTE
Do not allow blades and grips to rotate
on the yoke.
ALL
32. Main rotor mast (exposed portion) for chafing,
nicks, scratches and cleanliness.
ALL
33. Electrical wiring for chafing and loose or
corroded connections.
34. Deleted.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-21
C17
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Inspect
Inspection Requirements
Phase
No’s
Area Name and No.
Status
Aircraft Serial No.
Action Taken
Faults and/or Remarks
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-22
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
MAIN ROTOR – 5
Inspect
Inspection Requirements
Phase
No’s
ALL
1. Visually insect pitch change links for
C
cracks, distortion and damage. If damage
is found reference TM 55-1520-228-23.
ALL
2.
Main rotor static stops for corrosion,
distortion and broken or missing safety
wire.
ALL
C
3.
Main rotor pitch horns for corrosion,
cracks and security. Trunnion bearings for
binding or excessive wear.
ALL
C
4.
Main rotor hub grip for cracks, corrosion,
leakage and security.
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-23 C22
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
PHASED MAINTENANCE CHECKLIST
MAIN ROTOR – 5
Inspect
Inspection Requirements
Status
Phase
No’s
5. Main rotor blades for cracks, dents, corrosion,
ALL
C
security and condition of paint. Pay particular
attention for corrosion in the area of the
inertia weight retention screw heads.
ALL
C
6.
Visually inspect the main rotor yoke assembly
for cracks between the pillow block bores
and lower flange on inboard and outboard
surfaces. Wipe clean the yoke web section
inner and outer surfaces and if inspection
by flashlight reveals a crack indication
verify using fluorescent penetrant. If crack
is confirmed, remove yoke assembly from
service.
ALL
C
7.
Main rotor pillow block retention bolts and
nuts for security. Replace nuts and bolts if
slippage marks have moved. If slippage has
not occurred, retorque nuts to proper torque
limits IAW TM 55-1520-228-23, paragraph
5-84.
8.
Deleted.
Aircraft Serial No.
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-24 C25
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
ENGINE – 6
Inspect
Phase
No’s
ALL
1.
Inspection Requirements
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
Engine cowl assembly for cracks,
punctures and loose or missing fasteners.
Latches for proper operation.
ALL
2.
Aft fairing assembly for cracks, punctures
and loose or missing fasteners.
ALL
C
3.
Exhaust stacks for cracks and burned
spots. Stack clamps for cracks, corrosion
and security.
ALL
4.
Exhaust collector support for cracks.
Cracks are not repairable, replace the
engine.
2, 4
5.
Engine fire walls for cracks, dents and
loose or missing fasteners. Sealing strips
for cuts, tears, deterioration and security.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-25
C17
Initial
TM 55-1520-228-PM
PHASE NO.__________
Inspect
Phase
No’s
1, 3
Inspection Requirements
Area Name and No.
Aircraft Serial No.
ENGINE – 6
Action Taken
Status
Faults and/or Remarks
6. Engine compressor inlet guide vanes for
excessive erosion and nicks.
2, 4
7. Accessory gearbox housing for leakage,
cracks, corrosion and security.
ALL
8. Anti-icing actuator for corrosion and security.
ALL
9. Anti-icing push-pull tube for damage and
secure connections.
ALL
C
10. N2 push-pull rod for damage, binding, worn
bearings and security.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-26
C17
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Inspect
Phase
No’s
ALL
C
Inspection Requirements
Area Name and No.
Aircraft Serial No.
ENGINE – 6
Action Taken
Status
Faults and/or Remarks
11. N2 bell crank for damage, condition of bearings
and security.
ALL
12. Deleted
ALL
C
13. Burner drain valve for security.
ALL
14. Igniter plug removed, checked and cleaned.
NOTE
Do not remove igniter plug while fuel
nozzle is removed.
2, 4
15. Turbine outlet thermocouple for chafing, worn
insulation and security.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-27
C17
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Inspect
Phase
No’s
ALL
C
Inspection Requirements
Area Name and No.
Aircraft Serial No.
ENGINE – 6
Action Taken
Status
Faults and/or Remarks
16. Turbine outlet temperature system checked
using Jet-Cal analyzer.
ALL
C
17. Power control cable boot for cuts, tears, cracks
and security. Insure that the inside is not
gummy.
ALL
C
18. Power control cable assembly for wear,
binding and security.
ALL
C
19. Power control cable rigid connecting links and
bellcrank for corrosion, cracks and security.
Bearings for binding or excessive wear.
ALL
C
20. Fuel control (N1) lever bolt hole for elongation,
upper bolt holes on rigid connecting link (that
connects to fuel control lever) for elongation.
Inspect bolt on fuel control lever and on fuel
control bellcrank to engine deck bracket for
fretting, corrosion, and wear.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-28
C17
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Inspect
Phase
No’s
ALL
C
Inspection Requirements
Area Name and No.
Aircraft Serial No.
ENGINE – 6
Action Taken
Status
Faults and/or Remarks
21. Starter generator removed and brushes
checked for wear and freedom of movement.
Brush leads for deterioration or chafing.
Commutator for arcing, presence of oil or
metal particles. Electrical connections for
security. Screen for security of attachment.
ALL
C
22. Starter drive spline for excessive wear.
ALL
C
23. Fuel nozzle removed, checked and cleaned.
NOTE
Do not remove fuel nozzle while igniter
plug is removed.
ALL
C
24. Fuel lines and hoses for chafing, leakage and
security of connections. Apply required torque
at all connections.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-29
C17
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Inspect
Phase
No’s
ALL
Inspection Requirements
Area Name and No.
Aircraft Serial No.
ENGINE – 6
Action Taken
Status
Faults and/or Remarks
25. Engine assembly for corrosion, evidence of
leakage or other obvious external damage.
ALL
C
26. Drive coupling disc assemblies for distortion,
cracks and security.
2, 4
27. Oil cooler blower for cracks, dents and
security. Blower air intake for foreign material
and clogging.
(Access 8)
ALL
28. Oil cooler air duct for cuts, tears, punctures
and security.
ALL
29. Oil lines for chafing, leakage and security of
connections.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-30
C17
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Inspect
Phase
No’s
ALL
Inspection Requirements
Area Name and No.
Aircraft Serial No.
ENGINE – 6
Action Taken
Status
Faults and/or Remarks
30. Electrical wiring for chafing and loose or
corroded connections.
2, 4
31. Engine and oil cooler decks for cracks,
punctures and loose or missing rivets. Paint
for chipped or peeling condition.
ALL
32. Check nuts attaching engine mounts to engine
mount fittings for security and cotter pin
installation. Torque nuts on bolts attaching
engine mounts to airframe.
2, 4
33. Engine area structure for cracks, corrosion
and loose of missing rivets.
ALL
C
34. Perform engine fuel system pneumatic leak
check including around governor diaphram
(TM 55-2840-241-23 for OH-58C or TM
55-2840-231-23 for OH-58A).
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-31
C17
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Inspect
Phase
No’s
ALL
C
Inspection Requirements
Area Name and No.
Aircraft Serial No.
ENGINE – 6
Action Taken
Status
Faults and/or Remarks
35.
All engine oil and air hoses and tubing for
damage and security. Apply required torque at
all connections. Inspect PC filter.
ALL
36.
Inspect oil tank attaching hardware and support
for leaks, damage and security.
ALL
C
37.
Bleed air lines for chafing leakage and security
of connections.
ALL
C
38.
Inspect fuel shut-off valve internally for foreign
objects to ensure fuel path is not restricted.
ALL
C
38.1. Inspect fuel lines and hoses to and from fuel
shut-off valve for chafing, leakage, and security
of the connections. Apply required torque at all
connections.
ALL
C
39.
Inspect fuel shut-off valve to assure the valve is
fully open and fully closed when actuated by the
cockpit fuel shut-off lever
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-32
C25
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
AFT FUESELAGE AND AVIONICS – 7
Inspect
Inspection Requirements
Phase
No’s
1, 3
1. Aft fuselage skin for cracks, punctures and
loose or missing rivets. Paint and decals
for chipped or peeling condition.
ALL
2.
Access panels for punctures, cracks,
corrosion and missing screws.
ALL
C
3.
Tail boom attachment fittings for corrosion,
cracks and loose rivets. Bolts for torque
stripe alignment.
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
(Access 13)
ALL
C
4.
Tail rotor control push-pull tubes for
chafing, corrosion and security. Bearings
for binding or excessive wear.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-33
C17
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
AFT FUSELAGE AND AVIONICS– 7
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
5. Tail rotor control bellcranks for damage,
conditions of bearings and security.
ALL
6. Vulnerability reduction control cable for
condition, chafing and binding. (OH-58C)
ALL
C
7. Pressurized fuel line for chafing, leakage and
security of connections. Apply required torque
at all connections.
(Access 12)
8. Deleted.
1, 3
9. Closed circuit refueling unit for cracks. Seals
for cuts or evidence of leakage. Sleeve for free
rotation. Lanyard for fraying and security.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-34
C17
Date
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
AFT FUSELAGE AND AVIONICS– 7
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
10. Avionics compartment floor for corrosion,
cracks, punctures, bonding separation and
cleanliness.
ALL
11. Oil cooler air duct for cuts, tears, punctures
and security.
ALL
12. Heater air ducts for cracks, cuts, tears and
security.
ALL
13. Engine oil drain lines for chafing and security
of connections.
ALL
14. Fuel drain lines, hoses, and fittings for chafing,
deterioration, corrosion, and security of
connections.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-35
C15
Date
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
AFT FUSELAGE AND AVIONICS– 7
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
15. Electrical wiring for chafing and loose or
corroded connections.
1, 3
16. Aft fuselage structure for cracks, corrosion and
loose or missing rivets.
ALL
17. Antennas and attaching screws. Assure that
sealant around base and attaching screws are
not missing or deteriorated.
ALL
18. Retorque upper clamp on fuel supply hose
inside fuel cell, refer to Table 7-3, TM
55-1500-204-25-1. Not applicable if MWO
55-1520-228-30-32 has been incorporated.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-36
C9
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
TAIL BOOM – 8
Inspect
Inspection Requirements
Phase
No’s
ALL
1. Tail boom structure for cracks, corrosion
and loose or missing rivets.
ALL
2.
Tail cone for cracks and security.
2, 4
C
3.
Hanger bearing mounts for damage and
security.
ALL
C
4.
Tail rotor control push-pull tubes for
chafing, corrosion and security. Bearings
for binding or excessive wear.
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-37
C17
Initial
TM 55-1520-228-PM
PHASE NO.__________
Inspect
Phase
No’s
ALL
C
Inspection Requirements
Area Name and No.
Aircraft Serial No.
TAIL BOOM – 8
Action Taken
Status
Faults and/or Remarks
5. Tail rotor control bellcranks for damage,
condition of bearings and security.
ALL
6. Vulnerability reduction system bellcrank,
electro-mechanical disconnect, cable
assemblies and cannon plug for damage,
chafing, binding and security. If installed,
OH-58C.
ALL
7. Electrical wiring for chafing and loose or
corroded connections.
ALL
8. Tail rotor drive shaft cover for cracks,
punctures, and loose or missing fasteners.
Latches for proper operation.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-38
C17
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
TAIL ROTOR – 9
Inspect
Inspection Requirements
Phase
No’s
ALL
1. Non-rotating control linkage at tail
C
rotor gearbox for damage and security.
Bearings for binding or worn condition.
Control tube and bushing for alignment of
vent holes.
ALL
C
2.
Pitch change tube (exposed portion) for
damage, corrosion and security. Boot for
cuts, tears, deterioration and security.
ALL
C
3.
Tail rotor crosshead for corrosion and
security.
ALL
C
4.
Tail rotor pitch link for corrosion and
security. Bearings for binding and
excessive wear.
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-39
C17
Initial
TM 55-1520-228-PM
PHASE NO.__________
Inspect
Phase
No’s
ALL
C
Inspection Requirements
Area Name and No.
Aircraft Serial No.
TAIL ROTOR – 9
Action Taken
Status
Faults and/or Remarks
5. Tail rotor pitch horn for damage and security.
Pitch horn link stud for security.
ALL
C
6. Tail rotor hub for damage and security.
ALL
C
7. Tail rotor blade bearings for binding and
excessive wear.
2, 4
C
8. Tail rotor hub trunnion removed for inspection
of bearings, liners and thrust bushings.
Not required after compliance with MWO
55-1520-228-50-25.
2, 4
C
9. Tail rotor hub trunnion bearing housings turned
180 degrees to unworn side of Teflon bearing.
Do not interchange bearing locations. Replace
bearing housings and bearings when both
sides are worn. Not required after compliance
with MWO 55-1520-228-50-25.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-40
C17
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Inspect
Phase
No’s
4
C
Inspection Requirements
Area Name and No.
Aircraft Serial No.
TAIL ROTOR – 9
Action Taken
Status
Faults and/or Remarks
10. Tail rotor hub, yoke, bearing liner and
trunnion inspected for cracks using
fluorescent-penetrant method. Not
required after compliance with MWO
55-1520-228-50-25.
ALL
C
11. Tail rotor hub and blade assembly rebalanced
statically or using Vibrex.
ALL
C
12. Tail rotor hub trunnion friction (preload)
adjusted and assembly static balanced.
Not required after compliance with MWO
55-1520-228-50-25.
ALL
C
13. Tail rotor rigging checked. Refer to TM
55-1520-228-23.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-41
C17
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Inspect
Inspection Requirements
Phase
No’s
Area Name and No.
Status
Aircraft Serial No.
Action Taken
Faults and/or Remarks
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-42
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
TAIL ROTOR DRIVE TRAIN – 10
Inspect
Inspection Requirements
Phase
No’s
ALL
1. Tail rotor gearbox and filler plug for oil
C
contamination, leakage, cracks, corrosion,
and gearbox retaining nuts for proper
torque.
ALL
2.
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
Drive coupling disc assemblies for
distortion, cracks and security.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-43
C17
Initial
TM 55-1520-228-PM
PHASE NO.__________
Inspect
Inspection Requirements
Phase
No’s
Area Name and No.
Status
Aircraft Serial No.
Action Taken
Faults and/or Remarks
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-44
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
BOTTOM FUSELAGE AND LANDING GEAR – 11
Inspect
Inspection Requirements
Phase
No’s
1, 3
1. Lower fuselage skin for cracks, punctures
C
and loose or missing rivets. Paint and
decals for chipped or peeling condition.
1, 3
2.
Lower fuselage structure for cracks,
corrosion, bonding separation, and loose
or missing rivets.
ALL
C
3.
Landing gear crosstubes for cracks, dents
and excessive spread.
1, 3
C
4.
Landing gear fitting assembly for wear,
cracks, corrosion and security.
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-45
C23
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
BOTTOM FUSELAGE AND LANDING GEAR – 11
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
ALL
C
5. Landing gear strap assemblies for wear,
cracks, alignment and security.
ALL
C
6. Landing gear skid tubes for cracks distortion
and wear.
ALL
C
7. Landing gear skid shoes for excessive wear,
cracks and security.
ALL
8. WSPS lower cutter assembly for damage and
security.
ALL
9. Fuel sump for condition, security, loose
connection and evidence of leaks.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-46
C17
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
ARMAMENT
Inspect
Phase
No’s
ALL
1.
Inspection Requirements
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
Electrical wiring for chafing, damage and
loose or corroded connectors.
4
2.
Ejector rack, disassembly to extent
necessary to replace packings, and
inspect.
ALL
3.
Clean and inspect PDU mount and PDU.
ALL
4.
Inspect pylon assembly for corrosion,
damage and security.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-46.1
C21
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
LUBRICATION
Inspect
Inspection Requirements
Phase
No’s
ALL
1. Lubrication will be completed in
C
accordance with TM 55-1520-228-23.
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-46.2
C21
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
POWER ON CHECKS
Inspect
Inspection Requirements
Phase
No’s
ALL
1. Engine chip detectors circuit for continuity
C
by shorting out chip detector, to check
warning light operation.
ALL
C
2.
Transmission chip detectors circuit for
continuity by shorting out chip detector, to
check warning light operation.
ALL
C
3.
Tail rotor gearbox chip detector circuit for
continuity by shorting out chip detector, to
check warning light operation.
ALL
4.
Particle separator for proper operation by
checking for positive airflow from ejector
ports. (TM 55-1520-228-23)
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-47
C20
Initial
TM 55-1520-228-PM
PHASE NO.__________
Inspect
Phase
No’s
ALL
C
Inspection Requirements
Area Name and No.
Aircraft Serial No.
POWER ON CHECKS
Action Taken
Status
Faults and/or Remarks
5. Anti-icing actuator for proper operation.
ALL
C
6. Fuel shutoff valve outlet port for leakage.
ALL
C
7. Check to insure that the engine fuel pump filter
bypass switch lights the caution light when fuel
filter pressure switch is in the bypass mode.
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-48
C17
Date
Initial
TM 55-1520-228-PM
PHASE NO.__________
Area Name and No.
FINAL INSPECTION REQUIREMENTS
Inspect
Inspection Requirements
Phase
No’s
ALL
1. Ascertain that all entries on forms, records
C
and work sheets have been completed
or updated and new forms initiated
as required, and/or have been carried
forward on DA Form 2408-13 or DA form
2408-14.
ALL
C
2.
Perform post-inspection maintenance
operational checks (MOC) as required, in
accordance with TM 55-1500-328-25.
ALL
C
3.
Perform a Daily inspection in accordance
with TM 55-1520-228-PMD.
ALL
C
4.
OH-58A only. Accomplish fuel control max
speed stop check (TM 55-2840-231-23
and TM 55-1520-228-MTF).
PHASED MAINTENANCE CHECKLIST
Aircraft Serial No.
Status
Faults and/or Remarks
Date
Total Hrs This Area
Action Taken
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-49
C17
Initial
TM 55-1520-228-PM
Area Name and No.
Aircraft Serial No.
FINAL INSPECTION REQUIREMENTS
Inspection Requirements
Action Taken
Status
Faults and/or Remarks
PHASE NO.__________
Inspect
Phase
No’s
NOTE
Post-Inspection Maintenance Test
Flight (MTF) required in accordance
with
TM
55-1520-228-MTF/TM
55-1520-235-MTF and TM
55-1500-328-25
“FOD REMINDER”
Check work area for tools and parts after completion on maintenance and inspection.
2-50
C11
Date
Initial
TM 55-1520-228-PM
By Order of the Secretary of the Army:
BERNARD W. ROGERS
General, United States
Chief of Staff
Official:
Army
J. C. PENNINGTON
Brigadier General, United States Army
The Adjutant General
DISTRIBUTION:
To be distributed in accordance with DA Form 12-31 PM Maintenance Requirements for
OH-58 and OH-58C aircraft.
*U.S. GOVERNMENT PRINTING OFFICE: 1990 - 262-842/25174
These are the instructions for sending an electronic 2028
The following format must be used if submitting an electronic 2028. The subject line must be
exactly the same and all fields must be included; however only the following fields are
mandatory: 1, 3, 4, 5, 6, 7, 8, 9, 10, 13, 15, 16, 17, and 27.
From:
To:
“Whomever” <[email protected]>
[email protected]
Subject: DA Form 2028
1. From: Joe Smith
2. Unit: home
3. Address: 4300 Park
4. City: Hometown
5. St: MO
6. Zip: 77777
7. Date Sent: 19--OCT--93
8. Pub no: 55--2840--229--23
9. Pub Title: TM
10. Publication Date: 04--JUL--85
11. Change Number: 7
12. Submitter Rank: MSG
13. Submitter FName: Joe
14. Submitter MName: T
15. Submitter LName: Smith
16. Submitter Phone: 123--123--1234
17. Problem: 1
18. Page: 2
19. Paragraph: 3
20. Line: 4
21. NSN: 5
22. Reference: 6
23. Figure: 7
24. Table: 8
25. Item: 9
26. Total: 123
27. Text:
This is the text for the problem below line 27.
Use Part II (reverse) for Repair Parts and Special Tool Lists (RPSTL) and Supply Catalogs/
Supply Manuals (SC/SM)
RECOMMENDED CHANGES TO PUBLICATIONS AND
BLANK FORMS
DATE
8/30/05
For use of this form, see AR 25--30; the proponent agency is ODISC4.
TO: (Forward to proponent of publication or form)(Include ZIP Code)
FROM: (Activity and location)(Include ZIP Code)
Commander, U.S. Army Aviation and Missile Command
MSG, Jane Q. Doe
ATTN: AMSAM--MMC--MA--NP
1234 Any Street
Redstone Arsenal, AL. 35898
Nowhere Town, AL 34565
PART 1 -- ALL PUBLICATIONS (EXCEPT RPSTL AND SC/SM) AND BLANK FORMS
PUBLICATION/FORM NUMBER
DATE
TM 55-1520-228-PM
1 Sep 1978
ITEM
PAGE
PARA--
LINE
FIGURE
TABLE
NO.
NO.
GRAPH
NO. *
NO.
NO.
1
WP0005
2
TITLE Organizational, Direct Support, And General
Support Maintenance Manual for Machine Gun, .50
Caliber M3P and M3P Machine Gun Electrical Test Set
Used On Avenger Air Defense Weapon System
RECOMMENDED CHANGES AND REASON
Test or Corrective Action column should identify a different WP number.
PG 3
* Reference to line numbers within the paragraph or subparagraph.
TYPED NAME, GRADE OR TITLE
MSG, Jane Q. Doe, SFC
DA FORM 2028, FEB 74
TELEPHONE EXCHANGE/
AUTOVON, PLUS EXTENSION
SIGNATURE
788--1234
REPLACES DA FORM 2028, 1 DEC 68, WHICH WILL BE USED.
USAPA V3.01
TO: (Forward direct to addressee listed in publication)
FROM: (Activity and location) (Include ZIP Code)
Commander, U.S. Army Aviation and Missile Command
MSG, Jane Q. Doe
ATTN: AMSAM--MMC--MA--NP
1234 Any Street
Redstone Arsenal, AL. 35898
Nowhere Town, AL 34565
DATE
8/30/05
PART II -- REPAIR PARTS AND SPECIAL TOOL LISTS AND SUPPLY CATALOGS/SUPPLY MANUALS
PUBLICATION NUMBER
DATE
TITLE
PAGE
COLM
LINE
NATIONAL STOCK
REFERENCE
FIGURE
ITEM
NO.
NO.
NO.
NUMBER
NO.
NO.
NO.
TOTAL NO.
OF MAJOR
ITEMS
SUPPORTED
RECOMMENDED ACTION
PART III -- REMARKS (Any general remarks or recommendations, or suggestions for improvement of publications and
blank forms. Additional blank sheets may be used if more space is needed.)
TYPED NAME, GRADE OR TITLE
MSG, Jane Q. Doe, SFC
TELEPHONE EXCHANGE/AUTOVON,
PLUS EXTENSION
SIGNATURE
788--1234
USAPA V3.01
Use Part II (reverse) for Repair Parts and Special Tool Lists (RPSTL) and Supply Catalogs/
Supply Manuals (SC/SM)
RECOMMENDED CHANGES TO PUBLICATIONS AND
BLANK FORMS
DATE
For use of this form, see AR 25--30; the proponent agency is ODISC4.
TO: (Forward to proponent of publication or form)(Include ZIP Code)
Commander, U.S. Army Aviation and Missile Command
ATTN: AMSAM-MMC-MA-NP
Redstone Arsenal, AL. 35898
FROM: (Activity and location)(Include ZIP Code)
PART 1 -- ALL PUBLICATIONS (EXCEPT RPSTL AND SC/SM) AND BLANK FORMS
PUBLICATION/FORM NUMBER
DATE
TITLE
1 SEP 1978
TM 55-1520-228-PM
ITEM
PAGE
PARA--
LINE
FIGURE
TABLE
NO.
NO.
GRAPH
NO. *
NO.
NO.
Phased Maintenance Checklist
RECOMMENDED CHANGES AND REASON
* Reference to line numbers within the paragraph or subparagraph.
TYPED NAME, GRADE OR TITLE
DA FORM 2028, FEB 74
TELEPHONE EXCHANGE/
AUTOVON, PLUS EXTENSION
SIGNATURE
REPLACES DA FORM 2028, 1 DEC 68, WHICH WILL BE USED.
USAPA V3.01
TO: (Forward direct to addressee listed in publication)
Commander, U.S. Army Aviation and Missile Command
ATTN: AMSAM-MMC-MA-NP
Redstone Arsenal, AL 35898
FROM: (Activity and location) (Include ZIP Code)
DATE
PART II -- REPAIR PARTS AND SPECIAL TOOL LISTS AND SUPPLY CATALOGS/SUPPLY MANUALS
PUBLICATION NUMBER
DATE
TM 55-1520-228-PM
TITLE
Phased Maintenance Checklist
1 SEP 1978
PAGE
COLM
LINE
NATIONAL STOCK
REFERENCE
FIGURE
ITEM
NO.
NO.
NO.
NUMBER
NO.
NO.
NO.
TOTAL NO.
OF MAJOR
ITEMS
SUPPORTED
RECOMMENDED ACTION
PART III -- REMARKS (Any general remarks or recommendations, or suggestions for improvement of publications and
blank forms. Additional blank sheets may be used if more space is needed.)
TYPED NAME, GRADE OR TITLE
TELEPHONE EXCHANGE/AUTOVON,
PLUS EXTENSION
SIGNATURE
USAPA V3.01
The Metric System and Equivalents
Linear Measure
1
1
1
1
1
1
Liquid Measure
1
1
1
1
1
1
centimeter = 10 millimeters = .39 inch
decimeter = 10 centimeters = 3.94 inches
meter = 10 decimeters = 39.37 inches
dekameter = 10 meters = 32.8 feet
hectometer = 10 dekameters = 328.08 feet
kilometer = 10 hectometers = 3,280.8 feet
centiliter = 10 milliters = .34 fl. ounce
deciliter = 10 centiliters = 3.38 fl. ounces
liter = 10 deciliters = 38.82 fl. ounces
dekaliter = 10 liters = 2.64 gallons
hectoliter = 10 dekaliters = 26.42 gallons
kiloliter = 10 hectoliters = 264.18 gallons
Square
Measure
Weights
1
1
1
1
1
1
1 centigram = 10 milligrams = 15 grain
1
1
1
1
1
1
1
decigram = 10 centigrams = 1.54 grains
gram = 10 decigrams = .035 ounce
dekagram = 10 grams = .35 ounce
hectogram = 10 dekagrams = 3.52 ounces
kilogram = 10 hectograms = 2.2 pounds
quintal = 100 kilograms = 220.46 pounds
metric ton = 10 quintals = 1.1 short tons
sq.
sq.
sq.
sq.
sq.
sq.
centimeter = 100 sq, millimeters = .155 sq. inch
decimenter = 100 sq. centimeters = 15.5 sq. inches
meter (centare) = 100 sq. decimeters = 10.76 sq. feet
dekameter (are) = 100 sq. meters = 1,076.4 sq. feet
hectometer (hectare) = 100 sq. dekameters = 2.47 acres
kilometer = 100 sq. hectometers = .386 sq. mile
Cubic Measure
1 cu. centimeter = 1000 cu. millimeters = .06 cu. inch
1 cu. decimeter = 1000 cu. centimeters = 61.02 cu. inches
1 cu meter = 1000 cu. decimeters = 35.31 cu. feet
Approximate Conversion Factors
To
To change
inches
feet
yards
miles
square inches
square feet
square yards
square miles
acres
cubic feet
cubic yards
fluid ounces
pints
quarts
gallons
ounces
pounds
short tons
pound-feet
pound-inches
Multiply
centimeters
meters
meters
kilometers
square centimeters
square meters
square meters
square kilometers
square hectometers
cubic meters
cubic meters
milliliters
liters
liters
liters
grams
kilograms
metric tons
newton-meters
newton-meters
by
2.540
.305
.914
1.609
6.451
.093
.836
2.590
.405
.028
.765
29,573
.473
.946
3.785
28.349
.454
.907
1.365
.11375
To c h a n g e
To
ounce-inches
centimeters
meters
meters
kilometers
square centimeters
square meters
square meters
square kilometers
square hectometers
cubic meters
cubic meters
milliliters
liters
liters
liters
grams
kilograms
metric tons
newton-meters
inches
feet
yards
miles
square inches
square feet
square yards
square miles
acres
cubic feet
cubic yards
fluid ounces
pints
quarts
gallons
ounces
pounds
short tons
Temperature (Exact)
°F
Fahrenheit
temperature
5/9 (after
subtracting 32)
Celsius
temperature
°C
Multiply
by
.007062
3.94
3.280
1.094
.621
.155
10.764
1.196
.386
2.471
35.315
1.308
.034
2.113
1.057
.264
.035
2.205
1.102
PIN: 035316-000
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