# SDR DALA1052335649

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2010
- Submitted: December 22, 2010
- Operation: Air carrier
- Aircraft: [N549US](https://openairdocs.org/aircraft/N549US), registered now
- Make and model: Boeing 757251
- Aircraft serial: 26496
- Aircraft time: 45,562 hours, 16,811 cycles
- Engine: Pwa PW2037
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- 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/DALA1052335649

## Discrepancy

DURING A LINE CHECK, MX FOUND THE EMERGENCY EXIT LIGHT AT DOOR 4L AND ABOVE SEAT 40C INOPERATIVE.  MX REPLACED BATTERY PACK M737.  OPS CHECK WAS GOOD.

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