Installation Instructions and Limitations

Installation Instructions and Limitations
CASA Approved
Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
CASA Approved
Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
Safety Equipment Technical Services Pty. Ltd.
SETS
Diagram 6: Y Piece Assembly - Attachment to Winch Hook
Restraint Harness
&
Y Piece Assembly
Installation Instructions
and
Limitations
Applicable Part Numbers
Diagram 7: HW-YP [ ] winch hook attachment D Ring (2087)
HW-CRW [ ]
HW-YP [ ]
Australian Technical Standard Order
(ATSO)
Number: …C1003...
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CASA Approved
Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
This supplement approves the use of SETS Restraint
Harness, (Pt No. HW-CRW [ ]) and SETS Y Piece
Assembly, (Pt No. HW-YP [a], HW-YP [b] and HW-YP [c]),
under certain conditions.
CASA Approved
Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
Diagram 4: Restraint Harness - Attachment to Restraint Strap
The information contained within this Installation
Instructions and Limitations Manual contains information
which supplements that of the Approved Flight Manual.
For data not contained in this manual, refer to the basic
Approved Flight manual. When in use, the data in this
supplement has precedence over the equivalent data in
the basic Approved Flight Manual.
If SETS Restraint Harness is used in conjunction with
other equipment, such as restraint strap, reference should
be made to the User and Instructions manuals for that
equipment for information concerning technical data,
instructions for use and operational limitations.
Diagram 5: Restraint Harness - Attachment to Y Piece
Assembly
The ATSO prescribes the minimum performance
standards which must be met by a Helicopter External
Lifting Device in order to be identified with the ATSOC1003 marking. It is the responsibility of those wishing to
install the SETS Restraint Harness on or within an aircraft
to determine that the aircraft’s installation conditions are
within the ATSO-C1003 standards. The SETS Restraint
Harness and/or Restraint Harness and Y Piece may only
be installed if further evaluation, by the user/installer,
substantiates an acceptable installation and is approved
by the Civil Aviation Safety Authority.
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Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
Diagram 2: HW-YP [a]
NB: HW-YP [c] is constructed with extended length Part A
harness
attachment
capewell
release
winch hook
attachment
Parts B & C
Part A
Diagram 3: HW-YP [b]
harness
attachment
stitch
block
winch hook
attachment
CASA Approved
Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
Log of Effective Pages:
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1
Date
06-2006
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Date
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Revision
Date
Log of Revisions:
Revision
Date
Initial Issue
04-2004
1
06-2005
2
06-2006
Copyright © 2006 by Safety Equipment Technical Services Pty Ltd
All rights reserved. No Part of this publication may be reproduced or distributed in any
form or by any means, or stored in a data base or retrieval system, without the prior
written permission of Safety Equipment Technical Services Pty Ltd.
Safety Equipment Technical Services Pty Ltd
6 Rialton Avenue
Blackburn Nth, Vic, 3130. Australia
Tel: 61 3 9878 7158
Produced by Safety Equipment Technical Services Pty Ltd
Parts B & C
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Part A
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CASA Approved
Section 1
Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
CASA Approved
Quick Release Hardware
General
The quick release hardware is the capewell release. It is
a two piece mechanism incorporating an internal (male)
fitting which is inserted into an external (female) body. To
activate the capewell release, the occupant must pull back
the top cover which allows the inner wire ring release
handle to become exposed. The occupant then pulls the
wire release ring to separate the male & female parts.
The SETS Restraint Harness is intended to be used to
restrict the movement of the user within the aircraft cabin
when used in conjunction with an approved restraint strap
which is attached to an approved primary load bearing
attachment point.
The SETS Restraint Harness is intended to also be used
as a helicopter external lifting device and is attached to
the helicopter winch hook with SETS Y Piece Assembly
only.
Section 2
Note:
Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
NB: There is no quick release hardware installed on HWYP [b].
Diagram 1: Capewell Release
Limitations
The Restraint Harness is not a seat belt for the
purposes of CAR 251.
The following limitations shall be observed:
1. For all winching operations where SETS Restraint
Harness is used as a helicopter external lifting device
and is attached to the helicopter winch hook, SETS Y
Piece must be used as the interconnecting part to the
winch hook.
2. The user of the Restraint Harness and Y Piece shall
be familiar with the operation of each assembly and
the emergency procedures of this supplement.
3. If any part of a flight includes winching operations,
SETS Y Piece Part No. HW-YP [a], HW-YP [b] or HWYP [c] should be used between the frontal lift point ‘D’
rings to the winch hook.
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CASA Approved
Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
CASA Approved
4. The aircraft shall be manoeuvred in such a way that
the wearer is not subjected to additional risk while
using the restraint harness.
The Y Piece Assembly is described below:
The Y Piece Assembly is a three legged ‘winch release
assembly’.
Sub-Part A
5. The pilot shall ensure that the movement of the
wearer about the aircraft will not result in the aircraft’s
centre of gravity limits being exceeded.
The upper leg:
6. An approved seat and seat restraint must be available
at all times to the wearer of the restraint harness for
take off, landing and emergency conditions.
HW-YP [a] and HW-YP [c]
This comprises of the inner (male) part of the capewell
release joined by a webbing section to the upper winch
hook attachment.
HW-YP [b]
7. The restraint harness must be secured to an approved
restraint strap, which must be secured to an approved
hard point within the aircraft cabin. The hard point
must be rated for a human or cargo load of not less
than 110 kg (242 lb).
This comprises of the upper winch hook attachment to the
central stitch block.
Sub-Part B & C
8. No component of the restraint harness or Y piece may
be used at any time ten (10) years after the date of
manufacture marked on each assembly.
The lower legs:
HW-YP [a] and HW-YP [c]
Section 3
This comprises of a lower, harness lift point connecting
snap joined to the outer (female) part of the capewell
release by a webbing section.
There are two ‘lower legs’ which are identical parts (ie:
Sub-Parts B & C). The snaps face each other in the
assembly.
HW-YP [b]
Issued 7-06-2006
Emergency Procedures
In the event of an emergency, or at the direction of the
pilot, the user should:
1. Release the harness from the restraint strap by either
the snap hook or by activating the emergency release
mechanism built into the strap.
2. Return to the original seat.
This comprises of a lower, harness lift point connecting
snap to the central stitch block.
There are two ‘lower legs’ which are identical. The ‘self
locking’ snaps face the same direction in the assembly.
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Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
3. Put on seat restraint.
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CASA Approved
Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
4. Release the Y Piece Assembly from the winch hook
by either the winch hook or by activating the
emergency release mechanism built into the HW-YP
[a] and HW-YP [c] assembly.
NB: Y Piece Part Number HW-YP [b] has no emergency
release mechanism built into the assembly. Release
from the winch hook when using the HW-YP [b]
assembly is by means of the winch hook or internal
aircraft winch cable release mechanism.
CASA Approved
Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
Sub-Part C
This part comprises the right side chest strap.
Sub-Part D
This comprises the left and right side main front
adjustment straps and through the lumbar block to form
the rear side of the seat.
Sub-Part E
This comprises the left and right main lift web and D rings
through the left and right lumbar block and the front side
of the seat.
5. Return to the original seat.
6. Put on seat restraint.
Sub-Part F
Section 4
Normal Procedures
This comprises the left and right leg straps.
Pre-Flight
Belly Band
The following inspections and procedures should be
carried out prior to flight:
This comprises left side non-adjusting belly band and right
side adjustable belly band.
1. Inspect the snaps to ensure that they function
correctly and that they are not damaged or locked.
2. Inspect the adjusters to ensure they are installed
correctly and that they are not damaged or locked in
any way.
3. Inspect the D rings and belly band hardware to ensure
they are not damaged.
4. Inspect all webbing to ensure there is no damage and
that the webbing is routed through the adjusters
correctly without twists.
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CASA Approved
Section 5
Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
CASA Approved
5. Inspect all stitching to ensure it is all intact and
undamaged.
Performance
This equipment has no bearing on aircraft performance.
Section 6
6. Inspect the Y Piece and restraint strap harness
attachment hardware to ensure it is compatible with
the harness attachment D rings by coupling and
uncoupling the attachment hardware and D rings.
Weight and Balance
The pilot should consider the weight and balance of the
restraint harness and Y Piece as part of the weight of the
wearer.
7. Inspect the upper Y Piece D ring attachment hardware
and the winch hook to ensure it is compatible with the
harness attachment D rings by coupling and
uncoupling the attachment hardware and winch hook.
The pilot shall ensure that the movement of the wearer
about the aircraft will not result in the aircraft’s centre of
gravity limits being exceeded.
Section 7
Operation
Systems Description
Where possible, the restraint harness should be attached
to the restraint strap whilst positioned in an aircraft seat.
This ensures that the user spends the minimum time
possible unsecured.
When correctly fitted, the restraint harness and Y Piece
enables personnel to carry out their duties in a
comfortable, safe environment.
The harness is described below:
Where possible the Y Piece assembly, which is attached
to the restraint harness front two winch attachment D
rings, should be attached to the winch hook prior to
disconnecting from the restraint strap.
The Restraint Harness is a full body harness.
Sub-Part A
This part comprises the front chest positioned adjuster
hardware, over the padded shoulder and back straps and
through the lumbar block to form the diagonal back straps
and lumbar support strap.
To fit the restraint harness correctly:
1. Place the harness shoulder straps over each
shoulder.
2. Place the harness 'seat' under buttocks.
Sub-Part B
3. Pass one leg strap around each leg, ensuring the left
strap goes around the left leg and the right strap
around the right leg and that there are no twists in the
strap.
This part comprises the left side chest strap.
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Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
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CASA Approved
Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
CASA Approved
HW-CRW [ -1]: Attach the 'V' ring adjuster on the leg
strap to the hip mounted snap hooks. Adjust the leg
straps so they are a firm fit without any discomfort and
position the elastic keepers at the loose end of the
strap at the turn-back.
Safety Equipment Technical Services Pty Ltd
Aircraft Restraint Harness and Y Piece
6. Attach the chest strap:
HW-CRW [ -1]: Attach the 'V' ring adjuster to the snap
and adjust to a comfortable fit and position the elastic
keeper at the loose end of the strap at the turn-back.
HW-CRW [ -2]: Insert the leg straps through the hip
mounted adjuster hardware, or if already inserted,
step into the leg straps. Adjust the leg straps by
pulling the loose leg strap through the hip mounted
adjusters. Adjust the leg straps so they are a firm fit
without any discomfort and position the elastic
keepers at the loose end of the strap at the turn-back.
HW-CRW [ -2]: Insert the chest strap through the
adjuster and adjust to a comfortable fit and position
the elastic keeper at the loose end of the strap at the
turn-back.
HW-CRW [ -3]: Insert the male adapter through the
female adapter and adjust to a comfortable fit and
position the elastic keeper at the loose end of the
strap at the turn-back.
HW-CRW [ -3]: Insert the male adapter on the leg
strap through the hip mounted female adapter. Adjust
the leg straps so they are a firm fit without any
discomfort and position the elastic keepers at the
loose end of the strap at the turn-back.
7. Pass the right side belly band hardware through the
left side hardware and adjust to a comfortable fit.
Secure the loose end of the strap to the Velcro and
position the elastic keeper at the turn-back.
4. Position the rear lumbar strap to a comfortable
position across the lumbar region of the back.
4. Fitting of Y Piece
a) Attach the lower snaps to each of the winch harness
lift point D rings.
5. Adjust the shoulder straps to a comfortable fit and
position the elastic keepers at the loose end of the
strap at the turn-back.
b) Attach the upper D ring over the winch hook.
c) Close the winch hook gate and install the safety pin.
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