Disagree between the Fuel-Flow Indication and the ECU Output on Engine 2

TASK 73-00-00-810-862-A
Disagree between the Fuel-Flow Indication and the ECU Output on Engine 2

1. Possible Causes

FWC-1 [1WW1]
FWC-2 [1WW2]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 31-53-34-000-001	Removal of the Flight Warning Computer (FWC)
AMM 31-53-34-400-001	Installation of the Flight Warning Computer (FWC)
AMM 71-00-00-710-006	Minimum Idle Check

3. Fault Confirmation
Subtask 73-00-00-710-170-A ** ON A/C NOT FOR ALL

A. Test
(1) Not applicable, the fault is evident.

4. Fault Isolation
Subtask 73-00-00-810-111-A ** ON A/C NOT FOR ALL

A. If the fault symptom is identified by the ECAM warning message ENG2 FF DISCREPANCY and CHECK message near the FF indication on the upper ECAM display unit:

replace the FWC-1 [1WW1] AMM 31-53-34-000-001 and AMM 31-53-34-400-001.

(1) If the fault continues:

replace the FWC-2 [1WW2] .

Subtask 73-00-00-710-171-A ** ON A/C NOT FOR ALL

B. Test
(1) Do a minimum idle check AMM 71-00-00-710-006.

[Rev.8 from Aug 2018] 2026.04.04 04:35:10 UTC