# SDR DALA2026030401508

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2026
- Submitted: March 4, 2026
- Operation: Air carrier
- Aircraft: [N555NW](https://openairdocs.org/aircraft/N555NW), registered now
- Make and model: Boeing 757251
- Aircraft serial: 33391
- Aircraft time: 63,617 hours, 28,890 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Zone 200
- 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/DALA2026030401508

## Discrepancy

TWO CEILING EMERGENCY LIGHTS INOP.  REMOVED AND REPLACED BATTERY PACK M10919 PER AMM 33-51. OPS TEST NORMAL. (8504080)

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