# SDR 2008UALA02737

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 2008
- Submitted: July 1, 2008
- Operation: Air carrier
- Aircraft: N181UA
- Make and model: Boeing 747422
- Aircraft serial: 25278
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 90085
- 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/2008UALA02737

## Discrepancy

EMERGENCY CEILING LIGHTS ROW 16-17 INOPERATIVE.  SUPPLEMENTAL DATA UPDATE, SUSPECT FAULTY POWER SUPPLY.  REPLACED POWER SUPPLY ASSEMBLY, OPS CHECKES NORMAL.  A/C OK FOR SERVICE.

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