Inflator 10 Yr ICA
Uploaded by
Mark RitcheyInflator 10 Yr ICA
Uploaded by
Mark RitcheyAMSAFE AVIATION INFLATABLE RESTRAINTS
SERVICE LETTER 25-031
August 1, 2008
Revised January 8, 2009
SERVICE LETTER 25-031
Subject:
Change in life limit for inflators used in AAIR (AmSafe Aviation Inflatable Restraint) systems used on part 23 and 25
aircraft.
Applicability:
All part 23 and 25 aircraft using the AAIR system using a TRW or Autoliv inflator.
Background:
The FAA recently approved a change in the inflator life limits from 7 to 10 years. Previously the inflators were
approved for a maximum life (service/storage) of 14 years with a 7 year refurbishment required by AmSafe
Aviation. The approved change allows a maximum combined service/storage life of 10 years (from date of
manufacture) with no required refurbishment. The Instructions for Continued Airworthiness are currently being
revised to reflect this change.
Required Operator Action:
Authorized personnel using the AAIR system should update their records/maintenance program to reflect the above
noted changes. Prior to the approved change, each inflator had an AmSafe Aviation “Inflator Sub-Assembly” label
which included the AmSafe part number, lot number, and expiration date. The 10 year life limit of an inflator with an
expiration date, as shown in Figure 1, can be determined by adding three (3) years to the expiration date. If the
inflator has an AmSafe label stating the “date of mfg” (see Figure 2), the service life of the inflator is 10 years after
the “date of mfg”.
Figure 1. Sample Label showing expiration date
Figure 2. Sample Label showing revised inflator life limits
1
ORIGINATED BY:
DRAWING NUMBER DRAWING TITLE CHANGE ORIGINATION:
F. Armenta
I
Service Letter 25-031 Inflator
SL 25-031
Limit Change
Life
I CRI-7001 ORIGINATION DATE
1/9/09
PRODUCT USED ON EFFECTIVITY
All Part 23 and Part 25 Aircraft using TRW or Autoliv Inflators
REV APPROVALS
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AFFECTED
DOCUMENTS [i][!] REASON(S) FOR CHANGE
MFGITEST/INSP )(
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REGULATORY Part 23 was left off original SL
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AFFECTED DOC NOS.
Notes: Effective 09/0 I /2006, nomenclature reference to Mesa, Arizona in title block of all
drawings shall be changed to Phoenix, Arizona.
DESCRIPTION OF CHANGE (S):
Effective 05/01/07, nomenclature reference to AM-SAFE in the proprietary block of all
drawings shall be chan,ged to AMSAFE.
Added Part 23 Aircraft to Service Letter.
FORM 1-221
REV 06/07 II SHEET 1 OF 1