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
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