BITE Test of the ADF 1 Inoperative

TASK 34-53-00-810-815-A
BITE Test of the ADF 1 Inoperative

1. Possible Causes

RECEIVER-ADF, 1 [2RP1]
LGCIU-1 [5GA1]
wiring of the GND/AIR LOGIC discrete from the ADF receiver 1 (2RP1) to the LGCIU 1 (5GA1)

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 32-31-71-000-001	Removal of the LGCIU
AMM 32-31-71-400-001	Installation of the LGCIU
AMM 34-53-00-740-003	BITE Test of the ADF
ASM 345301
AMM 34-53-31-000-002	Removal of the ADF Receiver
AMM 34-53-31-400-002	Installation of the ADF Receiver

3. Fault Confirmation
Subtask 34-53-00-740-078-A

A. Test
(1) Not applicable, the fault is evident.

4. Fault Isolation
Subtask 34-53-00-810-066-A

A. If the BITE test of the ADF 1 cannot be started on the MCDU:

(1) If the fault continues:

(a) If the fault continues:

do a check and repair the wiring of the GND/AIR LOGIC discrete from the ADF receiver 1 (2RP1) to the LGCIU 1 (5GA1) ASM 345301.

Subtask 34-53-00-740-079-A

B. Do the BITE test of the ADF AMM 34-53-00-740-003.

[Rev.8 from Aug 2018] 2026.04.04 04:33:27 UTC