AMSAFE SEATBELT AIRBAG SYSTEM
INSTALLATION, HANDLING AND SHIPPING INSTRUCTIONS E510629
TESTING AND FAULT ISOLATION
02-Aug-2013
Page 1006
System with Enabling Switch & Dual Inflators:
(1) Use the following instructions to complete the AmSafe Seatbelt Airbag System Diagnostic
Check for dual inflator system, SDT P/N 508987-401.
(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:
WHEN REPLACING/RETESTING EMA, DO NOT TEST AN EMA THAT IS NOT SECURED
IN THE EMA BRACKET. INADVERTENT SYSTEM DEPLOYMENT MAY OCCUR.
ACTION RESPONSES FAULT DIAGNOSIS
1
Turn 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 new
commercially available, 9- volt
battery.
2
Verify seatbelt is unbuckled and
connect SDT to Diagnostic Connector
on Cable Interface Assy.
3
Set toggle switch to number of inflators
connected to an EMA.
Example: If a single restraint uses two
inflators, set “# of Seats” Toggle Switch to “2”.
4 Turn SDT ON/OFF switch to ON.
- Battery LED – Green
- Sensor LED – Red
- Inflator LED – Red
5
Buckle Seatbelt
All system validation LEDs
are green go to step 6.
All three SEAT Validation LEDs will illuminate:
green for a “pass” condition or one or more
illuminate red for a “fail” condition.
If test fails, check all connections
and retest. Replace failed
components as indicated on the
SDT until a “pass” condition is
met. Retest after replacing each
component. Replace as follows:
- Battery LED – Replace EMA
- Sensor LED – Replace EMA
- Inflator LED – Replace Inflator
Cable, Inflator.
If fail condition still exists, replace
Interface Cable.
6 Turn SDT off.
7 Repeat Step 4 for next seat position.
8
Unbuckle seatbelt. Turn SDT ON/OFF
switch to OFF. If finished testing all
seat positions in aircraft, disconnect the
SDT in order to prevent EMA battery
from draining and replace the
diagnostic protective cap or cover.
Otherwise start at Step 2 for next seat
test.
AmSafe Seatbelt Airbag System
testing complete.
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