DOC AIRBUS | TSM A320FLoss of the Signal of the Thrust-Reverser Blocker-Door Deploy/Stow Switches through the Channel A on Engine 1
TASK 78-31-00-810-811-A
Loss of the Signal of the Thrust-Reverser Blocker-Door Deploy/Stow Switches through the Channel A on Engine 1
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
3. Fault Confirmation
Subtask 78-31-00-710-070-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 78-31-00-810-060-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:37:58 UTC
Loss of the Signal of the Thrust-Reverser Blocker-Door Deploy/Stow Switches through the Channel A on Engine 1
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| TSM TASK 78-31-00-810-839-A | Thrust-Reverser Blocker-Door Stow-Switches Feedback Disagree on Engine 1 |
| TSM TASK 78-31-00-810-843-A | Thrust-Reverser Blocker-Door Deploy-Switches Feedback Disagree on Engine 1 |
| AMM 78-31-00-710-040 | Operational Test of the Thrust Reverser System |
Subtask 78-31-00-710-070-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 78-31-00-810-060-A ** ON A/C NOT FOR ALL
A. If the test gives the maintenance message DEPL/STOW SW, J5:
NOTE: A fault has been detected which cannot be isolated to the thrust-reverser blocker-door deploy and/or stow-switch circuits
- do the procedures as given on the CFDS messages below:
. DEPL SW, J5 (Ref. TSM TASK 78-31-00-810-843) and
. STOW SW, J5 (Ref. TSM TASK 78-31-00-810-839).