Appendix D Troubleshooting Guide
Emerging Lifesaving Technologies ELTs are designed to be as worry free as possible but with
any complex electronic system faults can occur. Large arrays of tests were performed during the
manufacturing and certification process of each unit. The use of the Self-Test feature will help
identify any aircraft maintenance that will maintain the airworthiness of the ELT.
Indication
Status
Action
Corrective Action
Green
Light
Flashing
½
second
intervals
System has been
activated either by
the G-switch or by
pilot’s remote
switch
Reset system by pressing
TEST/RESET once.
If light fails to stop flashing,
remove battery, and return to
manufacturer for repair.
5 Green
Flashing
Lights
406 test good.
Valid GPS data
encoded
No further action is
required
5 Yellow
Flashing
Lights
406 test good.
Default GPS data
encoded
No further action is
required
2 Red
Flashes
406 Antenna
Failure
Check to insure antenna
cable is properly connected.
Insure the ground plane is
of sufficient size
Reinstall Cable. Check for
corrosion around the antenna
and re-establish a good bond
with ground plane. If problem
continues contact service
department for further
instructions.
3 Red
Flashes
Transmitter chain
failure
This test looks at a number
of internal test that verify
the accuracy of the ELT
and its ability to send out a
completed code within the
parameters as set forth by
Cospas/Sarsat
Check to insure the coax is not
cut nor has hard bends in it.
There are no field repairable
items during this test. Install
shipping strap and return to
manufacturer for repair.
Summary of Contents for ELT406GPS
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Page 15: ... 1 4 Parts List Model Number Description Part Number ...
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Page 40: ... This information is supplied as This information is supplied as approved data data ...
Page 47: ... 5 7 1 Harness Wiring Basic 406 ELT ...
Page 48: ... 5 7 2 Harness Wiring 406 ELT With GPS 406 ELT With GPS ...
Page 49: ... 5 7 3 Basic Wiring w GPS and External Buzzer 5 7 3 Basic Wiring w GPS and External Buzzer ...
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