COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
FA2100CVR
Rev. 15 Page 302
Apr. 14/16
Disassembly
23–70–04
Use or disclosure of information on this sheet is subject
to the restrictions on the cover page of this document.
NOTE:
All attaching parts such as cable assemblies, stand
−
offs, screws,
washers, etc. that are not damaged, should be retained with the
chassis for reinstallation with the repaired LRUs. The FA2100CVR
replaceable PWAs or modules consist of the Acoustic Beacon, Air-
craft Interface PWA, Audio Compressor PWA, Acquisition Processor
PWA, and the Crash Survivable Memory Unit (CSMU).
A.
Underwater Locator Beacon Removal
(See Figure 301 or IPL Figure 1, Item 80)
The Underwater Locator Beacon (ULB) is mounted on the Model FA2100’s CSMU
front bracket with the beacon water switch facing to the left (refer to Figure 301,
(1–80)). The ULB is equipped with a battery that has an expected life the same as
the beacon replacement date marked on the beacon label. Upon expiration of ex-
pected battery life, contact L-3AR for replacement batteries, installation instructions
and re-certification.
30
−
Day ULB’s already in service may still be used, and a ULB Battery Kit, p/n:
147E0305
−
00, is available for battery replacement.
The 30
−
Day ULB, p/n: 266E0305
−
00, is no longer manufactured due to the cancel-
lation of TSO
−
121 and TSO
−
121a as of Dec. 1, 2015.
A 90
−
Day ULB Conversion Kit, pn: 068E5542
−
00, is available for retrofit of a
30
−
Day ULB to 90
−
Day beacon to an existing recorder.
When converting from a 30
−
Day ULB to a 90
−
Day ULB, the L
−
3AR ULB Conversion
Kit, P/N 068E5542
−
00, must be used. This kit contains the 90
−
Day ULB and four
attaching hex mounting screws. Converted CVR units must be marked with MOD
−
DOT #15. Refer to FA2100CVR SB022 for more details.
NOTE:
Once a unit has been changed to a 90
−
Day ULB, it can not
revert to a 30
−
Day ULB due to the Hardware MOD
−
DOT
marking.
NOTE:
Refer to the IPL effectivity column, as some specific
FA2100CVR Part Numbers are allowed only 90
−
Day ULBs to
be installed.
All new recorder production units will incorporate the 90
−
Day underwater locator
beacon, p/n: 266E5542
−
00. For more information, including the testing and cleaning
of the ULB, please see the L
−
3AR Underwater Locator Beacon CMM, p/n
165E5542
−
00.
The document reference is online, please check the correspondence between the online documentation and the printed version.