# SDR UALA2010070902454

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 8, 2010
- Submitted: July 9, 2010
- Operation: Air carrier
- Aircraft: [N483UA](https://openairdocs.org/aircraft/N483UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1586
- Aircraft time: 28,305 hours, 12,640 cycles
- Engine: Iae V2527A5
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Circuit Board
- Condition: Failed
- Location: Emergency Lights
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010070902454

## Discrepancy

EMERGENCY EXIT LIGHT BULB ON UPPER CONSOLE BURNED OUT.  "OFF" LIGHTS WORK DURING LAMP TEST, BUT DO NOT ILLUMINATE WHEN SWITCH IS PLACED "OFF".  CHECKED FUSE "F" FOR OPEN CIRCUIT.  FOUND BOARD 7LP CAUSING ISSUE.  LIGHT WORKS OFF PIN 44 REF ASM.  FOUND THAT BOARD 5LP DOES NOT USE PIN 44.  SWAPPED BOARDS AND LIGHT NOW WORKS NORMAL.

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