# SDR CALA2025121512109

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 12, 2025
- Submitted: December 15, 2025
- Operation: Air carrier
- Aircraft: [N47524](https://openairdocs.org/aircraft/N47524), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 64501
- Aircraft time: 16,351 hours, 5,399 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701100
- Condition: Failed
- 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/CALA2025121512109

## Discrepancy

PASSENGER CABIN CENTER FWD L/H EMERGENCY BATTERY PACK M1675 LIGTHING IS DETERIORATED.  REMOVED POWER SUPPLY BATTERY PACK M1675 IAW B737 AMM 33-51-06-96 0-802 STEP 4-D-(5) AND REPLACED BATTERY PACK M1675, OP TEST GOOD IAW B737 AMM 33-51-06-960-802 STEPS 4-D-(6) AND 4-D-(7)

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