Access to the ECAM1 OEB DATABASE not Possible

TASK 31-51-00-810-801-A
Access to the ECAM1 OEB DATABASE not Possible

1. Possible Causes

FWC-1 [1WW1]
wiring of the OEB pin programming signal from the FWC1 to ground

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AWM 315227
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)

3. Fault Confirmation
Subtask 31-51-00-700-050-B

A. Not applicable.

4. Fault Isolation
Subtask 31-51-00-810-050-B

A. On the ECAM1/FWC1/2-SDAC1/2-ECP page, if the OEB DATABASE indication is not shown:
(1) Do an FWS LRU IDENTIFICATION of the FWC1(1WW1) and make sure, with the P/N, that the FWC1 has the OEB reminder function and that the DB/N (DATABASE Number) is shown.
(a) If the FWC1 does not have the OEB reminder function:

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

(b) If the FWC1 has the OEB REMINDER function and if there is no DB/N:

with the MCDU, do a check of the pin programming.

1 If the parity is incorrect:

do a check and repair the wiring of the OEB pin programming signal from the FWC1 to ground AWM 315227.

[Rev.8 from Aug 2018] 2026.04.04 04:30:10 UTC