# SDR 2007UALA00053

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2007
- Submitted: January 16, 2007
- Operation: Air carrier
- Aircraft: [N121UA](https://openairdocs.org/aircraft/N121UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 29167
- Aircraft time: 32,007 hours, 3,940 cycles
- Engine: Pwa PW4056
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 582233
- Condition: Inoperative
- Location: Emergency Light
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA00053

## Discrepancy

EMERGENCY EEL LIGHT VERY DIM AT UPPER DECK SEAT 17 LEFT, UPPER DECK AISLE LEADING TO STAIRS, AND FWD STAIRS.  *S/D*  REPLACED BATTERY ASSYS.  OPS NORMAL.

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