# SDR 2007UALA02538

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2007
- Submitted: July 13, 2007
- Operation: Air carrier
- Aircraft: N174UA
- Make and model: Boeing 747422
- Aircraft serial: 24381
- Aircraft time: 67,652 hours, 7,636 cycles
- Engine: Pwa PW4056
- System (JASC): [3320 · Passenger Compartment Lighting](https://openairdocs.org/jasc/3320)
- Part: Light
- Condition: Fire
- Location: Cabin
- Stage of operation: IN
- How discovered: 9
- Nature of condition: A
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA02538

## Discrepancy

SMOKE ODOR DOWNSTAIRS AND THEN FIRE FORWARD OF UPPER DECK GALLEY IN THE CEILING.  ONE HALON EXTINGUISHER FIRED.   [08-08-07]   FOUND FLUORESCENT LITE SOCKETS WITH HEAT DAMAGE.  REPLACED UPPER DECK CEILING FLUORESCENT LIGHT SOCKETS.  ALSO REPLACED BALLAST.  ALL CKS NORMAL.

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