# SDR ASAA2025051157847

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 11, 2025
- Submitted: May 12, 2025
- Operation: Air carrier
- Aircraft: [N275AK](https://openairdocs.org/aircraft/N275AK), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 61556
- Aircraft time: 27,519 hours, 8,810 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71702001
- Condition: Inoperative
- Location: Zone 200
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2025051157847

## Discrepancy

REF T/C 78233001, SEVERAL EMERG LTS NOT HOLDING 15 MINS CHARGE. GROUNDED - YES. REF T/C 78233001, REPLACED M1675 AND M1694 EMERG EXIT LIGHTS BATT PACK, OPS NML REF WDM 33-51-13 AND WDM 33-51-12.

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