# SDR DALA2025121509123

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 15, 2025
- Submitted: December 15, 2025
- Operation: Air carrier
- Aircraft: [N775DE](https://openairdocs.org/aircraft/N775DE), registered now
- Make and model: Boeing 737-8EH
- Registry model: [Boeing 737-8EH](https://openairdocs.org/model/boeing-737-8eh) (OpenAirDocs)
- Aircraft serial: 39620
- Aircraft time: 31,581 hours, 18,052 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/DALA2025121509123

## Discrepancy

DURING SVC CK, FOUND EMER LIGHTS POWERED BY BATTERY PACK M1670 INOP. R/R'D B/P M1670 PER AMM 33-51. OP CKS GOOD.

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