Kannad AF INTEGRA - TROUBLESHOOTING; Fault Isolation and Indicator Lights; Self-Test Failure Codes and Solutions

OPERATION MANUAL
AF INTEGRA / AF-H INTEGRA ELT
PAGE: 401
JUN 20/2013
TROUBLESHOOTING
1. General
Procedure for fault isolation onboard uses the indicator light (red visual
indicator) of the ELT’s front panel. This indicator light is activated by a self-test
capability within the ELT.
2. Faults on Self-test
When the self-test is carried out, the number of flashes on ELT or RCP’s visual
indicator gives an indication of the faulty parameter detected during the self-
test.
(1)3+1 flashes
- Low battery voltage:
Replace battery: refer to relevant CMM for tests and repair.
(2) 3+2 flashes
- Low RF power:
Check 406 MHz power: refer to relevant CMM for tests and repair.
(3) 3+3 flashes
- Faulty VCO locking (faulty frequency):
Check frequencies: refer to relevant CMM for tests and repair.
(4) 3+4 flashes
- No identification programmed
Check programming:refer to relevant CMM for tests and repair.
(5) 3+5 flashes
- VSWR Fault
Check correct connection of antenna
Perform a VSWR measurement
(6) 3+6 flashes
- Internal GPS serial link fault
Check GPS receiver: refer to relevant CMM for tests and repair.
Note: for CMM download and other servicing instructions, refer to Service &
Support section of Kannad Aviation website.