# SDR DALA2025090906672

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 6, 2025
- Submitted: September 9, 2025
- Operation: Air carrier
- Aircraft: [N878DN](https://openairdocs.org/aircraft/N878DN), registered now
- Make and model: Boeing 737932ER
- Aircraft serial: 31989
- Aircraft time: 26,377 hours, 9,849 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/DALA2025090906672

## Discrepancy

(LOG 7343338) DURING CABIN WALK FOUND EMERGENCY LIGHTS ABOVE LH OVERWING EMERGENCY DOORS INOP. REPLACE POWER SUPPLY BATTERY PACK PER B737 AMM 33-51. OPS CHK GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
