FAC 1 YD Function Inoperative

TASK 22-63-00-810-809-A
FAC 1 YD Function Inoperative

1. Possible Causes

FAC 1
FMGC 1

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 22-91-00-710-001	Ground Scanning of the AFS
AMM 22-96-00-710-001	Operational Test of the AFS
AMM 22-97-00-710-001	Operational Test of the LAND CAT III Capability

3. Fault Confirmation
Subtask 22-63-00-710-068-A

A. Test
(1) Do the operational test of the LAND CAT III capability AMM 22-97-00-710-001.

4. Fault Isolation
Subtask 22-63-00-810-060-B

A. If the test gives the maintenance message AFS: CHECK FAC1 YD:

do the Ground Scanning of the AFS AMM 22-91-00-710-001.

(1) If the test gives a different message, do the trouble shooting procedure related to the maintenance message.
(2) If the test does not gives the maintenance message, or if the fault continues:

do the operational test of the AFS AMM 22-96-00-710-001 and read the results for the FAC 1 and the FMGC 1 .

(a) If the test gives a different message, do the trouble shooting procedure related to the maintenance message.

Subtask 22-63-00-710-069-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:25:14 UTC