# SDR SWAA2026080381006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 26, 2026
- Submitted: August 4, 2026
- Operation: Air carrier
- Aircraft: [N8501V](https://openairdocs.org/aircraft/N8501V), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 41530
- Aircraft time: 32,611 hours, 16,351 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/SWAA2026080381006

## Discrepancy

EMERGENCY LIGHTS ATTACHED TO M1671 DO NOT OPERATE.  POWER SUPPLY AND BATTERY PACK M1671 WAS REPLACED AND A GOOD FUNCTIONAL TEST OF ALL ASSOCIATED EMERGENCY LIGHTS WAS PERFORMED IAW AMM 33-51-06-960-805 & AMM 33-51-06-960-806.

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