Loss of the AP Pushbutton Switch Function on the FMGC 2

TASK 22-11-00-810-828-A
Loss of the AP Pushbutton Switch Function on the FMGC 2

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
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 22-11-00-710-101-A

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

4. Fault Isolation
Subtask 22-11-00-865-073-A

A. Table of the circuit breakers used in this procedure:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	AUTO FLT/FCU/2	9CA2	M21
121VU	AUTO FLT/FMGC/2	10CA2	M17

Subtask 22-11-00-810-083-A

B. If the test gives the maintenance message AFS: CHK FMGC2-AP P/B CKT:

open the circuit breakers 9CA2 and 10CA2
after 15 s, close these circuit breakers
push the AP 2 pushbutton switch
after 1 minute, do the operational test of the AFS AMM 22-96-00-710-001 and read the result for the FMGC 2 .
If the test gives a different message, do the trouble shooting procedure related to the maintenance message.

Subtask 22-11-00-710-102-A

C. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:25:08 UTC