COMPONENT MAINTENANCE MANUAL
AVIATION PRODUCTS
Model FA5000
Rev. 02 Page 4
July 21/17
Introduction
23
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70–30
Use or disclosure of information on this sheet is subject to
the restrictions on the cover page of this document.
4. MAINTENANCE PHILOSOPHY
The Model FA5000 Solid-State Recorders are considered an
“ON CONDITION LRU”
and
is designed as maintenance-free unit which makes extensive use of surface mount tech-
nology (SMT).
The repair of printed wiring assemblies (PWAs) containing SMT devices requires special-
ized factory equipment, training, and techniques, therefore, such PWAs are not field-re-
pairable while the unit is under the warranty period. As a result, during the unit’s warranty
period, the FA5000’s maintenance philosophy is replacement of failed Level 2 assemblies.
The field replaceable assemblies identified for the FA5000 are the Aircraft Interface PWA,
the Main Processor PWA, and the Crash-Survivable Memory Unit (CSMU).
When it has been determined that one or more of these assemblies is faulty, the assem-
bly(ies) should be removed and returned to L3 Aviation Products for repair or replacement.
Attempts to repair any discrete components of these assemblies will void the warranty.
5. COMPONENT MAINTENANCE MANUAL (CMM) DESCRIPTION
This CMM consists of a single volume. The manual conforms to the intent and form of Air
Transport Association of America (ATA) Specification 100. The manual is written for an
audience of operators and both intermediate
−
and depot
−
Level maintenance technicians.
Functional, electrical and mechanical aspects of the Model FA5000 are documented; that
is, description, specifications, operation, testing, removal and replacement, etc. are con-
tained in this manual. The CMM content is summarized as follows:
A. FRONT MATTER
Front Matter material consists of a title page, service bulletin list, record of revisions,
record of changes, list of effective pages, table of contents, and this introduction.
B. DESCRIPTION AND OPERATION
This section contains the description and operation information for the Model
FA5000 Cockpit Voice Recorder. Line art is used to illustrate the unit, its intercon-
nections and functionality. This section also contains the Model FA5000 Theory of
Operation.
C. TESTING AND TROUBLESHOOTING
Section 100 contains specific checks and tests required to determine the operational
condition of a unit that has been removed from service. Also included in the section
are tables of required test equipment, test set-up data, procedures, and test parame-
The document reference is online, please check the correspondence between the online documentation and the printed version.
