W DOC AIRBUS | TSM A320F

Service Area Lights - The Service Area Light in the APU Compartment does not come on

TASK 33-31-00-810-803-A
Service Area Lights - The Service Area Light in the APU Compartment does not come on

1. Possible Causes
  • lamp
  • SERVICE AREA LIGHT 6LJ
  • ON-OFF SWITCH 11LJ
  • wiring
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
AMM 33-31-00-710-001
Operational Test of the Service Area Lighting
ASM 333101
AMM 33-31-11-000-001
Removal of the Service Area Light
AMM 33-31-11-400-001
Installation of the Service Area Light
3. Fault Confirmation
Subtask 33-31-00-710-052-A
A. Do the operational test of the Service Area Lighting AMM 33-31-00-710-001.
4. Fault Isolation
Subtask 33-31-00-810-053-A
A. If the operational test shows that the SERVICE AREA LIGHT 6LJ, in the APU compartment, does not come on:
  • replace the lamp .
   (1) If the fault continues:
  • do a check for 28 VDC at the SERVICE AREA LIGHT 6LJ ASM 333101.
     (a) If there is approx. 28 VDC:
     (b) If there is no 28 VDC::
  • do a check of the ON-OFF SWITCH 11LJ and replace it if necessary.
   (2) If the fault continues:
  • do a check and repair the wiring between:
    ON-OFF SWITCH 11LJ pin 2 and CB 2LJ,
    ON-OFF SWITCH 11LJ pin 1 and SERVICE AREA LIGHT 6LJ pin 1,
    SERVICE AREA LIGHT 6LJ pin 2 and GND ASM 333101.
Subtask 33-31-00-710-055-A
B. Do the test as given in the Para. 3.A .
5. Close-up
Subtask 33-31-00-860-052-A
A. Put the aircraft back to its initial configuration.
[Rev.8 from Aug 2018] 2026.04.04 04:31:56 UTC
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