Failure of the Engine 1 FDU
TASK 26-12-00-810-801-A
Failure of the Engine 1 FDU
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 26-12-00-710-050-A
Subtask 26-12-00-810-050-A
[Rev.8 from Aug 2018]
2026.04.04 04:27:05 UTC
Failure of the Engine 1 FDU
1. Possible Causes
- FDU-ENG1 [2WD1]
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 26-12-00-710-002 | Operational Test of the Engine Fire and Overheat Detection with the Centralized Fault Display System (CFDS) |
| AMM 26-12-34-000-001 | Removal of the Engine Fire-Detection Unit (FDU) |
| AMM 26-12-34-400-001 | Installation of the Engine Fire-Detection Unit (FDU) |
Subtask 26-12-00-710-050-A
A. Test
(1) Do the operational test of the engine fire and overheat detection from the Multipurpose Control and Display Unit (MCDU) AMM 26-12-00-710-002.
4. Fault Isolation(1) Do the operational test of the engine fire and overheat detection from the Multipurpose Control and Display Unit (MCDU) AMM 26-12-00-710-002.
Subtask 26-12-00-810-050-A
A. If the test gives the maintenance message FDU ENG 1:
- replace the FDU-ENG1 [2WD1] AMM 26-12-34-000-001 and AMM 26-12-34-400-001.