# SDR CALA2025012101955

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 16, 2025
- Submitted: January 22, 2025
- Operation: Air carrier
- Aircraft: [N17529](https://openairdocs.org/aircraft/N17529), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 64503
- Aircraft time: 13,960 hours, 4,589 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- 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/CALA2025012101955

## Discrepancy

POWER SUPPLY - BATTERY PACK CAPACITY CHECK POWER SUPPLY BATTERY PACK CAPACITY CHECK - EMERGENCY LIGHTS BATTERY AT LEFT CENTER FAILED THE CAPACITY TEST. REMOVED AND REPLACED BATTERY PER AMM 33-51-06. OPS CHECK GOOD.

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