Discrepancy between the Speed Limits of the PFD 1 and the PFD 2

TASK 22-66-00-810-865-A
Discrepancy between the Speed Limits of the PFD 1 and the PFD 2

1. Possible Causes

ADIRU-1 [1FP1]
FAC-1 [1CC1]
SLAT/FLAP CONTR.COMP. [21CV]
ADIRU-2 [1FP2]
FAC-2 [1CC2]
SLAT/FLAP CONTR.COMP. [22CV]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 22-66-34-000-002	Removal of the FAC
AMM 22-66-34-400-002	Installation of the FAC
AMM 22-96-00-710-001	Operational Test of the AFS
AMM 27-51-34-000-001	Removal of the SFCC
AMM 27-51-34-400-001	Installation of the SFCC
AMM 34-12-34-000-001	Removal of the ADIRU
AMM 34-12-34-400-001	Installation of the ADIRU

3. Fault Confirmation
Subtask 22-66-00-710-174-A

A. Test
After the subsequent flight, make sure that the fault does not continue.

4. Fault Isolation
Subtask 22-66-00-810-134-A

A. If the failure is confirmed on the PFD 1:

do a check of the operational test of the AFS AMM 22-96-00-710-001.

(1) If the test gives a maintenance message:

refer to the procedure related to this message.

(2) If the test gives no maintenance message:

replace the ADIRU-1 [1FP1] AMM 34-12-34-000-001 and AMM 34-12-34-400-001.

(a) If the fault continues:

replace the FAC-1 [1CC1] AMM 22-66-34-000-002 and AMM 22-66-34-400-002.

(b) If the fault continues:

replace the SLAT/FLAP CONTR.COMP. [21CV] AMM 27-51-34-000-001 and AMM 27-51-34-400-001.

Subtask 22-66-00-810-135-A

B. If the failure is confirmed on the PFD 2:

do a check of the operational test of the AFS AMM 22-96-00-710-001.

(1) If the test gives a maintenance message:

refer to the procedure related to this message.

(2) If the test gives no maintenance message:

replace the ADIRU-2 [1FP2] AMM 34-12-34-000-001 and AMM 34-12-34-400-001.

(a) If the fault continues:

replace the FAC-2 [1CC2] AMM 22-66-34-000-002 and AMM 22-66-34-400-002.

(b) If the fault continues:

replace the SLAT/FLAP CONTR.COMP. [22CV] AMM 27-51-34-000-001 and AMM 27-51-34-400-001.

[Rev.8 from Aug 2018] 2026.04.04 04:25:21 UTC