# SDR ASAA2025072859718

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 28, 2025
- Submitted: July 29, 2025
- Operation: Air carrier
- Aircraft: [N270AK](https://openairdocs.org/aircraft/N270AK), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 44111
- Aircraft time: 29,443 hours, 9,494 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: No Test
- 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/ASAA2025072859718

## Discrepancy

WHILE WORKING T/C 78233001, BATTERY PACKS M2627, M1671 FAILED TEST. GROUNDED - YES. REPLACED BATTERY PACKS M2627, AND M1671 REF AMM 33-51-06-960-805. OPS CHECK GOOD.

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