# SDR DALA2023122110465

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 20, 2023
- Submitted: December 21, 2023
- Operation: Air carrier
- Aircraft: [N866DN](https://openairdocs.org/aircraft/N866DN), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 31977
- Aircraft time: 22,573 hours, 8,709 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: UNKNOWN
- Condition: Inoperative
- Location: Unknown
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2023122110465

## Discrepancy

(LOG 5599322) EMERGENCY LIGHT BATTERY PACK INOP AT ROW 26 LEFT. REMOVED AND REPLACED BATTERY PACK AT ROW 26 LEFT PER B737 AMM 33-51. OPS CHECK GOOD.

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