DOC AIRBUS | TSM A320FLogo Lights - Both Logo Lights do not go off
TASK 33-47-00-810-804-A
Logo Lights - Both Logo Lights do not go off
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 33-47-00-710-056-A 4. Fault Isolation
Subtask 33-47-00-810-053-B
Subtask 33-47-00-860-053-A
[Rev.8 from Aug 2018]
2026.04.04 04:32:01 UTC
Logo Lights - Both Logo Lights do not go off
1. Possible Causes
- RELAY 5LY
- RELAY 6LA
- RELAY 7LA
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| ASM 334101 | |
| AMM 33-47-00-710-002 | Operational Test of the Logo Lights |
| ASM 334701 |
Subtask 33-47-00-710-056-A 4. Fault Isolation
Subtask 33-47-00-810-053-B
A. If the test shows that the two LOGO LIGHTS 3LY (4LY) do not go off:
Subtask 33-47-00-710-057-A - make sure that the NAV LOGO switch 3LA is set to the OFF position.
- Open CB 2LR.
- replace RELAY 5LY
ASM 334701.
- check and replace if necessary RELAY 6LA and RELAY 7LA
ASM 334101.
B. Do the test as given in the Para. 3. A.
5. Close-upSubtask 33-47-00-860-053-A
A. Put the aircraft back to its initial configuration.