DOC AIRBUS | TSM A320FCrossloading from FWC1 OEB DATABASE not Possible
TASK 31-51-00-810-808-A
Crossloading from FWC1 OEB DATABASE not Possible
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 31-51-00-700-057-B 4. Fault Isolation
Subtask 31-51-00-810-057-B
[Rev.8 from Aug 2018]
2026.04.04 04:30:11 UTC
Crossloading from FWC1 OEB DATABASE not Possible
1. Possible Causes
- FWC-1 [1WW1]
- wiring of the data bus between the FWC1 output bus and the FWC2 input bus
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 31-51-00-610-003 | Crossload OEB REMINDER Data into FWCs using MCDUs. |
| ASM 315203 | |
| 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) |
Subtask 31-51-00-700-057-B 4. Fault Isolation
Subtask 31-51-00-810-057-B
A. If the UNABLE TO CROSSLOAD message comes into view on the ECAM2/OEB DATABASE UPDATE page:
- replace the FWC-1 [1WW1] AMM 31-53-34-000-001 AMM 31-53-34-400-001.
- do a check and repair the wiring of the data bus between the FWC1 output bus and the FWC2 input bus ASM 315203.