# SDR DALA2025112408534

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 22, 2025
- Submitted: November 24, 2025
- Operation: Air carrier
- Aircraft: [N557NW](https://openairdocs.org/aircraft/N557NW), registered now
- Make and model: Boeing 757251
- Aircraft serial: 33393
- Aircraft time: 64,539 hours, 29,286 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: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025112408534

## Discrepancy

ON WALK AROUND FOUND EMERGENCY LIGHTS AT ROWS 35-42 INOPERATIVE.   REMOVED AND REPLACED BATTERY PACK M735 PER B757 AMM 33-51. (7353798)

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