# SDR 2008UALA02231

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 2008
- Submitted: April 17, 2008
- Operation: Air carrier
- Aircraft: [N117UA](https://openairdocs.org/aircraft/N117UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 28810
- Aircraft time: 37,237 hours, 4,669 cycles
- Engine: Pwa PW4056
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Fuse
- Part number: 256005
- Condition: Inoperative
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2008UALA02231

## Discrepancy

EXTERIOR OVERWING EMERGENCY EXIT LIGHT INOP, AT LEFT SIDE AFT TWO LIGHT ASSY'S. FOUND POWER SUPPLY FUSE FAULTY. REPLACED FUSE OP CHECKED GOOD. AC OK FOR SERVICE.

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