Fan of the RA Transceiver 2 Inoperative

TASK 34-42-00-810-823-A
Fan of the RA Transceiver 2 Inoperative

1. Possible Causes

XCVR-RA, 2 [2SA2]
FAN-RA XCVR2 [3SA2]
wiring between the fan of the RA transceiver 2 (3SA2) and the RA transceiver 2 (2SA2)

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 34-42-00-750-001	Operational Test and Detailed Inspection for Contamination of the Radio Altimeter Fan
ASM 344202
AMM 34-42-33-000-001	Removal of the Radio Altimeter Transceiver
AMM 34-42-33-400-001	Installation of the Radio Altimeter Transceiver
AMM 34-42-45-000-001	Removal of the Radio Altimeter-Transceiver Fan
AMM 34-42-45-400-001	Installation of the Radio Altimeter-Transceiver Fan

3. Fault Confirmation
Subtask 34-42-00-700-052-A

A. Test
(1) Do the fan test of the radio altimeter AMM 34-42-00-750-001.

4. Fault Isolation
Subtask 34-42-00-810-074-A

A. If the fan does not operate correctly:

(1) If the fault continues:

(a) If the fault continues:

do a check and repair the wiring between the fan of the RA transceiver 2 (3SA2) and the RA transceiver 2 (2SA2) ASM 344202.

Subtask 34-42-00-700-053-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:33:09 UTC