AMSAFE V23 User manual

1043 N. 47th Ave.
Phoenix, AZ 85043 USA Phone: [phone]
Fax: [phone]
Phoenix, AZ
Issue: 03-Jun-2014, Rev. L
AMSAFE SEATBELT AIRBAG SYSTEM
V23 SYSTEM
INSTALLATION, HANDLING, AND SHIPPING INSTRUCTIONS
AmSafe Document Number: E510629
PROPRIETARY NOTICE
This information contained herein is confidential and proprietary to AmSafe. It shall not be reproduced or disclosed in whole or
in part to persons other than those necessary for the user to utilize such information or used in any manner detrimental to
AmSafe’s interests or for the purpose for which such information was provided without the express, written consent of AmSafe,
except to the extent required for installation or maintenance of recipient's equipment.
NOTICE – FREEDOM OF INFORMATION ACT (5 USC 552) AND DISCLOSURE OF CONFIDENTIAL INFORMATION
GENERALLY (18 USC 1905)
AmSafe is furnishing this document in confidence. The information disclosed herein falls within exemption (b) (4) of 5 USC 552
and the prohibitions of 18 USC 1905.
The AmSafe Commercial and Government Entity (CAGE) code: 35FB9

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
01-Aug-2013
Page ii
Revision History
Rev. Prepared Approved Revision Summary Date
– F. Armenta W. Gehret Initial Issue 10-Feb-2009
A F. Armenta J. Magish Page 1003 – updated page 1003 SDT Diagnostic
Check procedures table.
Pages 4003-4005 – Removed recommendation
that the EMA is disconnected for shipment of
seats. Added statement to prevent buckle from
being in proximity of the switch.
17-Mar-2009
B F. Armenta J. Magish Updated EMA and Inflator pics;
Page 1003 – added warning to disconnect SDT
after diagnostic check in order to prevent EMA
battery from draining.
11-Nov-2009
C F. Armenta J. Magish Updated nomenclature: Inflatable Lap Belt Assy
was Seatbelt Airbag Assembly (SAA);
Page 3002 – added EMA torque values to Table
06-Apr-2010
D. F. Armenta D. Potter Updated nomenclature: AmSafe Airbag System
(AmSafe Airbag) now AmSafe Seatbelt Airbag.
Updated Packing and Shipping Requirements for
Inflators: removed statement to use cargo only
when shipping; added EX numbers for Autoliv
Inflators
07-May-2010
E F. Armenta J. Magish Revision History – removed “Added Section
2000, Inspection/Check.” This section was never
added.
Page 4007 – Updated Packing and Shipping
Requirements for Inflators: removed statement to
use cargo only when shipping
30-Jun-2010
F L. Langston J. Magish Reformatted document; added instruction for
systems with no activation switch throughout
document; removed warnings/cautions with
instruction to avoid magnetic fields in vicinity of
EMA as this is no longer a valid issue; added
MSDS, EX numbers, and weights for ROI
inflators.
31-Aug-2010
G F. Armenta J. Magish Added Figure 3 – dual inflator system;
referenced dual inflator system throughout
document where inflator is referenced. Updated
Figure 11 to show locked and unlocked
connector position. AmSafe logo updated;
nomenclature: AmSafe was AmSafe Aviation.
14-Apr-2011
H F. Armenta J. Magish Updated to reference a structure mounted
system; added Figure 4 – Representative
Structure Mounted System; added Figures 14 &
15 for detail on expiration date of Inflator and
EMA; updated caution statement for mishandling
of EMA.
11-Mar-2011

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
01-Aug-2013
TOC-1
TABLE OF CONTENTS
TABLE OF CONTENTS TOC-1
CAUTIONS AND WARNINGS i
SYSTEM DESCRIPTION AND OPERATION 1
1. AmSafe Seatbelt Airbag System Description 1
A. General 1
B. Inflatable Lap Belt Assembly 4
C. Inflator and Inflator Fitting 4
D. Cable Interface Assembly 5
E. EMA 6
F. SDT 7
G. AmSafe Seatbelt Airbag System Specifications 8
TESTING AND FAULT ISOLATION 1001
1. Introduction 1001
A. Reasons for Testing and Fault Isolation 1001
B. Limitations of Testing and Fault Isolation 1001
C. Scope of Testing and Fault Isolation 1001
D. Procedures 1001
2. AmSafe Seatbelt Airbag Diagnostic Check 1002
A. Scope of AmSafe Seatbelt Airbag Diagnostic Check 1002
B. Interval 1002
C. Equipment and Materials Required 1002
D. Procedures 1005
REPAIR 2001
1. AmSafe Seatbelt Airbag System Repair 2001
A. Scope of the Job 2001
B. Limitation of the Job 2001
C. Equipment and Materials for the Job 2001
D. Procedures 2001
REMOVAL REPLACEMENT AND INSTALLATION PROCEDURES 3001
1. Removal Replacement and Installation Procedures 3001
A. General Information 3001
B. Field Disposal of Damaged LRUs 3002
C. Equipment and Materials Required 3003
D. AmSafe Seatbelt Airbag System Removal 3003
E. AmSafe Seatbelt Airbag V23 System Installation 3006
F. Installation of Seats Equipped with AmSafe Seatbelt Airbag System 3008
G. Removal of Seats Equipped with AmSafe Seatbelt Airbag System 3008
SHIPPING, TRANSPORTATION, HANDLING, STORAGE PROCEDURES 4001
1. Introduction 4001
A. Reasons for Shipping, Transportation, Handling, and Storage Procedures 4001
B. Limitations of Shipping, Transportation, Handling, and Storage Procedures 4001
C. Scope of Shipping, Transportation, Handling, and Storage Procedures 4001
D. Procedures 4001
2. Transporting Seats Equipped with the AmSafe Seatbelt Airbag System 4002
A. Reasons for Transporting Seats Equipped with AmSafe Seatbelt Airbag System 4002
B. Limitations of Transporting Seats Equipped with AmSafe Seatbelt Airbag System 4002
C. Scope of Transporting Seats Equipped with AmSafe Seatbelt Airbag System 4003
D. Procedures 4003
E. Preparing for Shipment 4003

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
01-Aug-2013
TOC-2
F. Packaging 4004
G. Exterior and Label Markings 4004
3. Returning AmSafe Seatbelt Airbag Components and RMA Procedures 4004
A. Reasons for the Job 4004
B. Limitations of the Job 4004
C. Scope of the Job 4004
D. Equipment and Materials for the Job 4004
E. RMA Procedures 4004
F. Packaging and Shipping Requirements – Inflator 4005
G. Packaging and Shipping Requirements – AmSafe Airbag Components Except the Inflator 4006
4. Storage 4007
A. Inflator 4007
B. EMA 4007
C. Inflatable Lap Belt Assembly 4008
5. Autolive MSDS for Airbag Inflator, Hybrid Curtain 4009
6. ROI MSDS for Airbag Inflator 4015

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
CAUTIONS AND WARNINGS
02-Aug-2013
Page i
CAUTIONS AND WARNINGS
A. CAUTIONS AND WARNINGS
(1) Read all the applicable WARNINGS and CAUTIONS prior to working on AmSafe Seatbelt
Airbag Components. These will be repeated where applicable throughout this document.
WARNING: THE INFLATOR ASSEMBLY IS A STORED GAS/ENERGETIC MATERIAL
DEVICE. DEATH OR SERIOUS INJURY MAY BE CAUSED BY MISUSE
AND/OR TAMPERING.
DO NOT MISHANDLE OR TAMPER WITH THE PRODUCT IN ANY
WAY.
NEVER ATTEMPT TO OPEN THE INFLATOR TO SERVICE THE GAS
STORAGE SYSTEM.
NEVER APPLY ELECTRICAL CURRENT TO THE ELECTRONICS
CONNECTION.
WARNING: INADVERTANT CONNECTION OF SEATBELT HALVES DURING HANDLING OR
INSTALLATION COULD CAUSE DEPLOYMENT OF AIRBAG. THE SAFETY TIE
PREVENTS CONNECTION OF THE SEATBELT HALVES. THE SAFETY TIE ON
THE TONGUE OF AIRBAG BELT MUST NOT BE PERMANENTLY REMOVED
UNTIL AMSAFE SEATBELT AIRBAG SYSTEM IS INTEGRATED INTO OEM’S
SEAT AND INSTALLED IN AIRCRAFT.
WARNING: THE AIRBAG SHOULD NEVER BE ACTIVE WITH AN USECURED SEAT OR
UNSECURED EMA. THE AMSAFE SEATBELT AIRBAG SYSTEM WILL DEPLOY
IF THE EMA OR SEAT RECEIVES AN INPUT ABOVE THE DEPLOYMENT
THRESHOLD OF THE SYSTEM. THE DEPLOYMENT THRESHOLD IS EASILY
ACHIEVED IF THE EMA IS UNSECURED TO THE SEAT OR IF AN USECURED
SEAT RECEIVES A SHOCK SUCH AS DROPPING THE SEAT ON THE FLOOR.
IT IS VERY IMPORTANT THAT A SEAT WITH AN ACTIVE AIRBAG SYSTEM BE
SECURED SUCH THAT IT CANNOT BE DROPPED OR MISHANDLED.
WARNING: ALL AMSAFE AIRBAG SYSTEMS WITH A LIFT LATCH BUCKLE HAVE AN
ENABLING SWITCH.
IF THE AMSAFE AIRBAG SYSTEM HAS AN END-RELEASE BUCKLE, IT MAY
NOT HAVE AN ENABLING SWITCH. AN AIRBAG WITHOUT AN ENABLING
SWITCH IS ALWAYS LIVE, EVEN WITH A DISCONNECTED BUCKLE.
IF THERE IS NO ELECTRICAL CABLE ATTACHED TO THE END-RELEASE
BUCKLE, THERE IS NO ENABLING SWITCH AND THE SYSTEM IS LIVE AS
SOON AS ALL ELECTRICAL CONNECTIONS ARE MADE.
IF THE ENABLING SWITCH IS NOT PRESENT OR IT IS A STRUCTURE
MOUNTED SYSTEM, THE EMA MUST NOT BE CONNECTED TO THE CABLE
INTERFACE ASSEMBLY UNLESS THE SYSTEM IS BEING TESTED OR THE
SEAT IS INSTALLED ON THE AIRCRAFT. UNDER NO CIRCUMSTANCES
SHALL THE EMA BE CONNECTED DURING TRANSPORTATION IF IT IS A
NON-ENABLING SWITCH SYSTEM OR STRUCTURE MOUNTED SYSTEM.

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
CAUTIONS AND WARNINGS
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CAUTION: KEEP THE INFLATOR ASSEMBLY AWAY FROM ANY AND ALL
THERMAL IGNITION SOURCES, ELECTRIC SPARKS OR FLAME,
IMPACT OR MECHANICAL IGNITION SOURCES, OR ELECTRO-STATIC
DISCHARGE. AUTO-IGNITION MAY OCCUR WITH THESE SOURCES
PRESENT.
CAUTION: DO NOT DROP OR MISHANDLE THE EMA. DAMAGE TO THE
ELECTRONICS BATTERY OR SENSOR MAY OCCUR. IF THE EMA IS
DROPPED OR DAMAGED THERE IS POTENTIAL FOR AN ANOMALY,
SUCH AS NOT FUNCTIONING AS INTENDED OR DESIGNED. A
DAMAGED OR MISHANDLED EMA COULD BE INJURIOUS TO
MAINTENANCE PERSONNEL OR PASSENGERS IF INSTALLED ON
THE SEAT. IF DAMAGE OR MISHANDLING IS SUSPECTED, DO NOT
INSTALL THE EMA, RETURN IT TO AMSAFE FOR REPLACMENT.
REFER TO RMA PROCEDURES IN SECTION 4000 FOR EMA SHIPPING
INFORMATION.

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
SYSTEM DESCRIPTION AND OPERATION
: 02-Aug-2013
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SYSTEM DESCRIPTION AND OPERATION
1. AMSAFE SEATBELT AIRBAG SYSTEM DESCRIPTION
A. General
The AmSafe Seatbelt Airbag V23 System is a self-contained, modular restraint system specifically
designed to improve occupant protection from serious head-impact injury during a survivable aircraft
crash, and enhance the occupant’s ability to egress the aircraft. The system does not interface to
any aircraft systems including the aircraft power supply. The AmSafe Seatbelt Airbag System is
designed with built-in safety features to prevent inadvertent deployments that could result in injury to
occupants, crew, or maintenance staff.
The AmSafe Seatbelt Airbag System may consist of the following core components:
Inflatable Lap Belt or Restraint Assembly – 1 per seat/passenger
Inflator and Inflator Fitting – 1 or 2 each per seat/passenger
EMA – 1 per seat assembly
Cable Interface Assembly – 1 per seat assembly
Each AmSafe Seatbelt Airbag seat position requires an Inflatable Lap Belt or Restraint Assembly and
Inflator(s) with an Inflator Fitting(s), see Figure 3 for dual Inflator system. Some Inflators do not
require an Inflator Fitting. One EMA is used for one seat assembly. The Cable Interface Assembly
connects the EMA to the Inflatable Lap Belt or Restraint Assembly.
The AmSafe Seatbelt Airbag V23 System uses a SDT to perform system diagnostics. This is a
hand-held device for use by the system installers and airline maintenance crew to test system
readiness and is described in Section 1000 of this document.

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
SYSTEM DESCRIPTION AND OPERATION
: 02-Aug-2013
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Figure 1: Representative Lift-Latch AmSafe Seatbelt Airbag System V23
Figure 2: Representative End-Release AmSafe Seatbelt Airbag System V23
ACH Inflator
EMA
Diagnostic
Connector
Airbag Belt – 2-Point
Part of Inflatable Lap
Belt Assembly
Cable Interface
Assembl
y
Inflator Fitting
(90-deg shown) Inflatable Lap
Belt Assembly to
Interface Cable
Connecto
r
Cable
Interface
Assembly
to EMA
Connecto
r
ROI Inflator 90 degree
Airbag Belt – 2-Point
Part of Inflatable Lap
Belt Assembly
End-Release
Buckle Assembly
Part of Inflatable
La
p
Belt
EMA
Inflatable Lap
Belt Assembly to
Interface Cable
Connecto
r
Diagnostic
Connector Cable
Interface

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
SYSTEM DESCRIPTION AND OPERATION
: 02-Aug-2013
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Figure 3: Representative Dual Inflator AmSafe Seatbelt Airbag System
Figure 4: Representative Structure Mounted Airbag System
Structure Mounted Airbag
Assembly Representation
EMA
Diagnostic
Connector
Inflator
Interfac
e cable
EMA
Cable Interface
Assembl
y
Lift-Latch Buckle
Assembly
Part of Inflatable
Inflator Fitting
(Axial)
Airbag Belt – 2-Point
Part of Inflatable Lap
Belt Assembly
Diagnostic
Connector
Dual Inflators

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
SYSTEM DESCRIPTION AND OPERATION
02-Aug-2013
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B. Inflatable Lap Belt or Restraint Assembly
(1) The Inflatable Lap Belt or Restraint Assembly consists of two primary subassemblies; the
Airbag Belt and the Buckle Belt. The subassemblies are of the same basic configuration as
conventional non-inflatable seatbelts. Figures 1 through 4 identify the primary components of
the AmSafe Seatbelt Airbag System.
(2) The airbag belt utilizes a similar tongue or coupling as conventional seatbelts. It may have an
attached enabling switch. The buckle side belt uses a lift-latch or end-release buckle. It may
include a magnet that closes an enabling switch upon buckling the belt halves together. The
enabling switch provides circuit continuity when the two seatbelt halves are connected allowing
the EMA to make the system active.
Enabling Switch System: All AmSafe Airbag Systems with lift-latch buckles have enabling
switches. If an end-release buckle has a cable that connects to the Cable Interface Assembly,
it has an enabling switch. If the two seatbelt halves are not coupled, circuit continuity is not
established by the enabling switch and the EMA disables or safes the system.
Non-Enabling Switch System: If the end-release buckle does not have a cable that connects
with the Cable Interface Assembly, then it does not have an enabling switch. The system is
active as soon as all electrical connections are made.
(3) The airbag belt consists of the airbag unit itself attached to an otherwise conventional seatbelt,
gas delivery hose, and electrical connector if an enabling switch is used (for lift-latch buckles).
The airbag, gas hose, and seatbelt webbing are all contained within a cover which has a tear
seam designed to open allowing the deployment of the airbag when gas pressure is applied.
(4) The gas hose connects to the Inflator via a threaded hose connector. Electrical connectors
attach the enabling switch circuitry to the Inflator’s squib (Figure 5) and Cable Interface
Assembly.
(5) The Inflatable Lap Belt or Restraint Assembly connects to the seat structure with the same
mounting provisions as a conventional seatbelt.
(6) The lift-latch tongue and buckle differ from the conventional assemblies such that is neither
interchangeable with non-airbag seat parts, nor is it possible to connect the tongue and buckle
180 degrees out of phase. These features preclude the situation where a conventional buckle
side assembly is accidentally combined with that of an AmSafe Seatbelt Airbag System.
C. Inflator and Inflator Fitting
(1) The Inflator mounts under the seat to a seat-specific bracket/clamp. One Inflator is required for
each passenger; two may be required for some seat installations, such as row-to row or dual
inflator systems. An Inflator Fitting may be required depending on the type of Inflator being
used; a 90, 45, or 0-degree type depending on installation requirement may be used to attach
the Inflatable Lap Belt Assembly hose, after the hose has been routed through the seat, to the
Inflator. Figures 5 and 6 identify the Inflator and if required Inflator Fittings.

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
SYSTEM DESCRIPTION AND OPERATION
02-Aug-2013
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Figure 5: Inflator and Inflator Fittings
Figure 6: ACH 2.4 Inflator (no inflator fitting required)
(2) The Inflator provides inert helium-argon gas to inflate the airbag upon command from the EMA.
(3) Inflator assemblies are susceptible to rust in certain environments; this is considered a normal
condition for the Inflator. There is no requirement to remove or protect the Inflator from rust.
D. Cable Interface Assembly
(1) Enabling Switch System: The Cable Interface Assembly (Figure 7) connects the Inflatable Lap
Belt or Restraint Assembly or End-Release Buckle to the EMA. Cable lengths are unique to
each seat and dependent on the location of the EMA and Inflatable Lap Belt or Restraint
Assembly.
Non-Enabling Switch System: The Cable Interface Assembly connects to the EMA and Inflator
directly or by means of an extension/LRU cable.
(2) The Cable Interface Assembly attaches to the EMA via a connector located on the EMA pigtail
cable (Figure 7).
(3) A diagnostic connector is attached to a leg of the Cable Interface Assembly. This connector is
used to interface with the SDT.
Inflator Fitting to Inflator
Connection Point
90-degree
0-degree
0-degree
with swivel
45-degree
Inflator Front End
Squib
Connecto
r

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
SYSTEM DESCRIPTION AND OPERATION
02-Aug-2013
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Figure 7: Cable Interface Assembly – Double Seat
E. EMA
(1) The EMA is a small box containing the system electronics, crash sensors, and battery (Figure
8). It should be mounted to hard seat structure to minimize vibration effects on the EMA and to
properly transmit the crash pulse to the EMA. The front of the EMA must face aircraft forward.
The EMA pigtail is located at the rear of the EMA.
(2) One EMA serves a single, double or triple seat assembly.
(3) The EMA Pigtail Cable has an electrical interface to the Cable Interface Assembly.
(4) The AmSafe Seatbelt Airbag System is designed to protect passengers during emergency
landing conditions. Proper deployment of the AmSafe Seatbelt Airbag requires the EMA to
recognize and deploy the Inflator at a predetermined deployment threshold. This threshold
does not allow inadvertent deployment during normal operations, such as hard landings,
luggage or food cart strikes on the seat, and random vibration or windmilling conditions.
(5) The AmSafe Seatbelt Airbag system EMA is battery operated. The EMA battery service life is
essentially defined by the refurbishment requirement of the EMA. Under typical operating and
environmental conditions, the battery service life is equal to the EMA refurbishment period.
The EMA battery is not user-replaceable. Refer to Table 1 for EMA refurbishment period.
Inflatable Lap Belt
/Restraint or
End-Release Buckle
Connectors
Diagnostic Tool
Connector and
Cover
EMA Connector

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
SYSTEM DESCRIPTION AND OPERATION
02-Aug-2013
Page 7
Figure 8: EMA Module and Pigtail
F. SDT
(1) To maintain the battery life of the system, there are no self-annunciating diagnostics in the EMA
that can negatively impact battery life. A SDT is provided to test the status the AmSafe
Seatbelt Airbag. This portable device has been designed for use by personnel after system
installation and airline maintenance personnel at predetermined intervals (every 4000 flight-
hours).
(2) The SDT is connected to the EMA at the diagnostic connector (Figure 7) to initiate the
diagnostic check. The tool provides a pass/fail indication for each seat position. The SDT has
a built-in power supply (common 9-volt battery) that does not drain the AmSafe Seatbelt Airbag
battery. The SDT battery is replaceable by the user with a standard commercially available 9-
volt battery.
EMA Pigtail

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
SYSTEM DESCRIPTION AND OPERATION
02-Aug-2013
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G. AmSafe Seatbelt Airbag System Specifications
Table 1: AmSafe Seatbelt Airbag V23 System Specifications
AmSafe Seatbelt Airbag System
Use: Personal Restraint
Type: Restraint System with Passive Protection
Belt Assembly: Rated Strength (min.): 3000 lbs. (1359 kg)
Webbing: Polyester or Nylon
Color: Customer specified
Belt Standard: TSO-C22g
Airbag: Nylon
Label: Fabric
Maximum Length: 42 inches
Weight: 1.54 pounds (approximate)
Warranty: 3 years hardware, 1 year fabric
Inflator Assembly: Required: 1 or 2 per pax
Inflator assembly: ACH Cold Gas
ROIColdGas
Medium: Compressed Helium-Argon
Pressure: 7,400 +/-psig
DOT Classification: DOT 9 / UN3268
Service Life: 10 years from date of manufacture
Refurbishment: None
Weight: 1.63 pounds (ACH 3.0 mole)
1.57 pounds (ACH 3.03 mole)
0.95 pounds (ACH 1.56 mole)
1.06 pounds (ACH 1.84 mole)
1.16 pounds (ACH 2.24 mole)
1.37 pounds (ACH 2.77 mole)
1.56 pounds (ACH 3.02 mole)
1.33 pounds (ACH 2.2 mole)
1.55 pounds (ROI 3.1 mole)
1.27 pounds (ROI 2.3 mole)
Warranty: 3 years
EMA: Required: 1 per single, double, or triple seat
Battery: Lithium Ion / Manganese Dioxide
Service Life: 14 years from date of manufacture
Refurbishment: 7 years
Weight: .69 pounds
Warranty: 3 years
SDT: Required: Customer defined
Battery: Standard 9-volt cell
System Maintenance: 4000 flight-hours
Warranty: 3 years
Calibration: Annually

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
TESTING AND FAULT ISOLATION
02-Aug-2013
Page 1001
TESTING AND FAULT ISOLATION
1. INTRODUCTION
A. Reasons for Testing and Fault Isolation
(1) Testing and Fault Isolation procedures are those performed by seat OEM or aircraft OEM
personnel to ensure that the AmSafe Seatbelt Airbag System is performing satisfactorily and, if
not, to determine what appropriate action to take.
B. Limitations of Testing and Fault Isolation
(1) The Testing and Fault Isolation procedures described in this section enable installation
personnel to quickly inspect the AmSafe Seatbelt Airbag System. This manual does not cover
in-depth or component level repair.
C. Scope of Testing and Fault Isolation
(1) Testing and Fault Isolation performed by the Installation personnel on the AmSafe Seatbelt
Airbag System consists of inspecting the AmSafe Seatbelt Airbag components, performing
diagnostic checks, and returning failed components to AmSafe.
D. Procedures
(1) The procedures for Testing and Fault Isolation are specified in the associated portion of this
manual.
(2) The SDT’s calibration must be checked yearly. The calibration sticker on the back of the unit
will indicate when the SDT needs to be checked. The SDT must be returned to AmSafe for re-
calibration. Refer to Section 4000, “SHIPPING, TRANSPORTATION, HANDLING, AND
STORAGE,” for specific return procedures.
(3) The SDT uses a standard 9-volt battery, which is replaceable by the user. The unit has a built-
in, low-battery condition alert. The following table within the AmSafe Seatbelt Airbag
Diagnostic Check section will detail this feature and the appropriate corrective action.
(4) If the SDT is dropped, it must be recalibrated.
(5) The test procedures listed in Paragraph 2D of this section starts with the most likely to fail
components in order of the test sequence of the SDT.
(6) After a component has been determined to not be at fault, it can be placed back on the seat.

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
TESTING AND FAULT ISOLATION
02-Aug-2013
Page 1002
2. AmSafe Seatbelt Airbag Diagnostic Check
A. Scope of AmSafe Seatbelt Airbag Diagnostic Check
(1) The AmSafe Seatbelt Airbag diagnostic check provides a system functional analysis of the
AmSafe Seatbelt Airbag circuits as a whole. Fault isolation of the systems components is
accomplished by replace-and-retest method.
B. Interval
(1) The AmSafe Seatbelt Airbag Diagnostic Check should be performed after system installation
onto the seat, after installation of the seat into the aircraft, and at a minimum of every 4000
flight-hours. Diagnostic checks at a shorter interval will not affect system reliability or operation
and will not affect operable life of the system.
C. Equipment and Materials Required
(1) The following items are required for the AmSafe Seatbelt Airbag diagnostic check.
Table 2: SDT Part Numbers
Qty Description Part
Number Figure
1 SDT – System with Enabling Switch 508668-201 9
1 SDT – System with Enabling Switch, dual inflators 508987-401 10
1 SDT – System without Enabling Switch 508987-401 10

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
TESTING AND FAULT ISOLATION
02-Aug-2013
Page 1003
Figure 9: SDT, System with Enabling Switch
Mated Connector to
Cable Interface
Assembly’s Diagnostic
Connector
3 Seat Position
PASS/FAIL
Indicator LED’s
ON/OFF
Switch
V
23 SDT
SDT Battery
Voltage Indicator

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
TESTING AND FAULT ISOLATION
02-Aug-2013
Page 1004
Figure 10: SDT, System with a Dual Inflator, Enabling Switch System
or a System without an Activation Switch

AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
TESTING AND FAULT ISOLATION
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Page 1005
D. Procedures
System with Enabling Switch & One Inflator:
(1) Use the following instructions to complete the AmSafe Seatbelt Airbag diagnostic check for a
system with an enabling switch.
(2) Check all possible electrical connectors within the AmSafe Seatbelt Airbag System. This
means check all Cable Interface Assembly connection ends: check EMA pigtail end and
connection(s) to all Inflator(s) for proper installation.
(3) Check EMA Pigtail, Cable Interface Assembly and Seat Belt electrical cable for breaks or worn
areas and replace, if necessary, before conducting test.
(4) When replacing SDT battery, do not allow debris or foreign objects in the opened battery
compartment.
(5) Remove Safety Tie from the Seatbelt Airbag Belt tongue (if installed). After diagnostic test is
complete, replace with new Safety Tie (in tongue) only if seat is not installed on aircraft.
WARNING: THE AIRBAG SYSTEM SHOULD NEVER BE ACTIVE WITH AN UNSECURED SEAT OR
UNSECURED EMA. THE AMSAFE SEATBELT AIRBAG SYSTEM WILL DEPLOY IF THE
EMA OR SEAT RECEIVES AN INPUT ABOVE THE DEPLOYMENT THRESHOLD OF THE
SYSTEM. THE DEPLOYMENT THRESHOLD IS EASILY ACHIEVED IF THE EMA IS
UNSECURED TO THE SEAT, OR IF AN UNSECURED SEAT RECEIVES A SHOCK SUCH
AS DROPPING THE SEAT ON THE FLOOR. IT IS VERY IMPORTANT THAT A SEAT WITH
AN ACTIVE AIRBAG SYSTEM (SEATBELT BUCKLED AND ALL CONNECTIONS MADE)
IS SECURED SUCH THAT IT CANNOT BE DROPPED OR MISHANDLED.
WARNING: DISCONNECT THE SDT IMMEDIATELY AFTER THE DIAGNOSTIC TEST IS COMPLETE.
LEAVING THE SDT CONNECTED TO THE SYSTEM MAY RESULT IN DRAINING OF THE
EMA BATTERY.
ACTION RESPONSES FAULT DIAGNOSIS
1Turn SDT ON/OFF switch to ON. If
Battery check is OK, turn SDT OFF.
SDT Battery LED will illuminate green
for acceptable power and red for low
battery condition.
If red, remove cover on back of SDT
and replace with a new, commercially
available, 9-volt battery.
Connecting SDT: Confirm all seat positions to be tested are unbuckled. Remove the Diagnostic Connector’s
protective cap (if applicable) located on the Interface Cable Assembly and connect the V23 SDT connector to the
diagnostic connector.
ACTION RESPONSES FAULT DIAGNOSIS
2Connect SDT to Diagnostic Connector
on Cable Interface Assy. Turn SDT
ON/OFF switch to ON.
All amber LEDs, go to Step 3.
All three SEAT LEDs will illuminate;
amber for a “pass” condition and green,
red, or no illumination for a “fail”
condition.
Check all connections, especially Cable
Interface Assembly. Replace EMA,
Inflator, and Cable Interface Assy. Retest
after replacing each part until a “pass”
condition is met.
3Buckle seatbelt.
Single SEAT LED is green, go
to Step 4.
A single SEAT LED will illuminate green
for a “pass” condition. Other SEAT
LEDs will extinguish. All amber
illumination, or all extinguished, or red
illumination is a “fail” condition.
Replace associated End-Release Buckle
Assembly, EMA, Inflator, and Cable
Interface Assembly. Retest after
replacing each part until a green SEAT
LED illuminates.
4Unbuckle seatbelt.
5Repeat Step 3 for next seat position.
6
Unbuckle seatbelt. Turn SDT ON/OFF
switch to OFF.
If finished testing all seat positions in
aircraft disconnect the SDT to prevent
EMA battery from draining, replace the
diagnostic protective cap or cover.
Otherwise, start at Step 2 for next seat
test.
AmSafe Seatbelt Airbag System
testing complete.