Loss of the Reception of the AP 1 ENGD Discrete Signal by the FMGC 2

TASK 22-11-00-810-824-A
Loss of the Reception of the AP 1 ENGD Discrete Signal by the FMGC 2

1. Possible Causes

FMGC-2 [1CA2]
wiring of the AP OPP ENGD MON OPP and AP OPP ENGD COM OPP discretes from the FMGC 2 (1CA2) to the first terminal block

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 22-83-34-000-001	Removal of the FMGC
AMM 22-83-34-400-001	Installation of the FMGC
ASM 228503
AMM 22-96-00-710-001	Operational Test of the AFS

3. Fault Confirmation
Subtask 22-11-00-710-084-A

A. Test
(1) On the FCU, push the AP 1 pushbutton switch.
(2) Do the operational test of the AFS AMM 22-96-00-710-001 and read the result for the FMGC 2.

4. Fault Isolation
Subtask 22-11-00-810-075-B

A. If the test gives the maintenance message AFS: FMGC2/AP1 ENGD WIRG:

replace the FMGC-2 [1CA2] AMM 22-83-34-000-001 and AMM 22-83-34-400-001.

(1) If the fault continues:

do a check and repair the wiring of the AP OPP ENGD MON OPP and AP OPP ENGD COM OPP discretes from the FMGC 2 (1CA2) to the first terminal block ASM 228503.

Subtask 22-11-00-710-085-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:25:07 UTC