DOC AIRBUS | TSM A320FLanding Lights - Landing Light extends but Light does not come on
TASK 33-42-00-810-802-A
Landing Lights - Landing Light extends but Light does not come on
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
3. Fault Confirmation
Subtask 33-42-00-710-052-A 4. Fault Isolation
Subtask 33-42-00-810-051-A
Subtask 33-42-00-860-051-A
[Rev.8 from Aug 2018]
2026.04.04 04:31:58 UTC
Landing Lights - Landing Light extends but Light does not come on
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 33-42-00-710-001 | Operational Test of the Landing Lights |
| ASM 334201 | |
| AMM 33-42-11-000-001 | Removal of the Landing Light |
| AMM 33-42-11-000-002 | Removal of the Landing Light Lamp |
| AMM 33-42-11-400-003 | Installation of the Landing Light |
| AMM 33-42-11-400-004 | Installation of the Landing Light Lamp |
Subtask 33-42-00-710-052-A 4. Fault Isolation
Subtask 33-42-00-810-051-A
A. If the test shows that the LANDING LIGHT 7LB (8LB) extends but the light does not come on:
(a) For LEDs technology:
(a) Do a check and repair the wiring between:
Subtask 33-42-00-710-053-A - Do a check for 115 VAC at the LANDING LIGHT 7LB (8LB) connector A/L ASM 334201.
(a) For LEDs technology:
- Replace the LT-LANDING, L [7LB] or LT-LANDING, R [8LB] AMM 33-42-11-000-001 and AMM 33-42-11-400-003.
- Replace the lamp AMM 33-42-11-000-002 and AMM 33-42-11-400-004.
- Replace the LT-LANDING, L [7LB] or LT-LANDING, R [8LB] AMM 33-42-11-000-001 and AMM 33-42-11-400-003.
(a) Do a check and repair the wiring between:
- CB 1LB (2LB) and the related LANDING LIGHT connector A/L,
- GND and the related LANDING LIGHT connector A/K ASM 334201.
B. Do the test as given in the Para. 3. A.
5. Close-upSubtask 33-42-00-860-051-A
A. Put the aircraft back to its initial configuration.