Test And Fault Isolation; Inspection And Test Regulatory Requirements; United States; Canada - ACR Electronics Cobham C406-1 Series Abbreviated Component Maintenance Manual

TASK 25-62-10-750-801

1. Inspection and Test Regulatory Requirements

SUBTASK 25-62-10-990-001
A.

United States

(1) In accordance with FAR Part 91, Subpart C, § 91.207 (d), the ELT must be inspected within 12
calendar months after the last inspection for:
(a) Proper installation;
(b) Battery corrosion;
(c) Operation of controls and crash sensor; and
(d) The presence of a sufficient signal radiated from its antenna.
(2) All maintenance shall be performed in accordance with FAR Part 43, Appendix D, which
requires the following inspections at each annual or 100-hour inspection:
(a) ELT and mount for improper installation;
(b) Wiring and conduits for improper routing, insecure mounting, and obvious defects;
(c) Bonding and shielding for improper installation and poor condition; and
(d) Antenna, including trailing antenna, for poor condition, insecure mounting, and improper
operation.
SUBTASK 25-62-10-990-002
B.

Canada

(1) CAR Part VI, Standard 625, Appendix C, requires the ELT to be inspected at intervals not
exceeding 12 months.
(2) All maintenance and testing shall be performed in accordance with the requirements of CAR
Part V, Standard 571, Appendix G, which requires:
(a) Corrosion inspection;
(b) Operational testing;
(c) Performance testing, including:
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2
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4
5
COBHAM AVIONICS WULFSBERG ELECTRONICS
ABBREVIATED COMPONENT MAINTENANCE MANUAL
C406-1 (453-5002), C406-1HM (453-5003)

TEST AND FAULT ISOLATION

Measured peak power after 3 minutes of operation,
Measured frequency after 3 minutes of operation,
Audio modulation, which shall be recognizable as a typical ELT signal,
Measured current draw in the "OFF" (ARM) and in the "ON" position, as specified
by the manufacturer, and
The automatic activation system.
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APR 06/10