User's Manual

AVIATION RECORDERS
COMPONENT MAINTENANCE MANUAL
AIRBUS IRIDIUM SATCOM SYSTEM
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, Revision 36. The manual is
written for an audience of intermediate- and depot-level maintenance technicians; however
the Airbus Iridium SATCOM System components are not field-repairable. Functional,
electrical and mechanical aspects of Airbus Iridium SATCOM System are documented -
description, specifications, operation, top-level illustrated parts list are contained 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 top-level description information for the Airbus Iridium SATCOM
System. Line art is used to illustrate the unit, its interconnections, and functionality.
C. TESTING AND TROUBLESHOOTING
This section is not applicable under the Level-1 maintenance philosophy for the SDU
and SCM units. These units are not field-repairable, and as such, must be returned to
the L-3AR factory for testing and repair should an LRU fail.
D. DISASSEMBLY
This section is not applicable under the current maintenance philosophy for the SDU
and SCM units. These units are not field-repairable, and as such, must be returned to
the L-3AR factory for testing and repair should an LRU fail.
E. CLEANING
This section is not applicable under the current maintenance philosophy. The SDU
and SCM LRUs are level-1 maintenance units and are not field-repairable, and as
such, no component cleaning may be performed.
F. CHECK
This section is not applicable under the current maintenance philosophy for this
system. The system is not field-repairable, and as such, no field checks may be
performed.
G. REPAIR
This section is not applicable under the current maintenance philosophy. The SDU
and SCM LRUs are level-1 maintenance units and are not field-repairable, and as
such, must be returned to the factory for testing and repair should an LRU fail.
Introduction
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Jan. 21/14
23-28-01