Elt Troubleshooting Guidelines; Table 7. Elt Troubleshooting Guide - ACR Electronics Cobham C406-1 Series Abbreviated Component Maintenance Manual

SUBTASK 25-62-10-810-002
B.

ELT Troubleshooting Guidelines

(1) Table 7 provides ELT troubleshooting guidelines for installation and operational issues.
SYMPTOM
Remote switch LED always on
(steady)
ELT will not turn off
COBHAM AVIONICS WULFSBERG ELECTRONICS
ABBREVIATED COMPONENT MAINTENANCE MANUAL
C406-1 (453-5002), C406-1HM (453-5003)

Table 7. ELT Troubleshooting Guide

PROBABLE CAUSE
Improper wiring
Short circuit
Battery too low to support 406
burst and causes circuit to reset
Turn off ELT using local switch - If ELT turns off:
Defective remote switch harness
reset circuit wiring
Defective remote switch
ELT defective
Verify integrity of all crimp and
Remove battery pack to disable
ELT and replace battery pack
If ELT does not turn off using local switch:
Remove battery pack to disable
ELT and return ELT to factory for
25-62-10
POSSIBLE SOLUTION
Verify wiring
Check for frayed insulation
solder connections
Check wiring continuity and
repair as necessary
Replace remote switch
servicing
Page 50 of 90
APR 06/10