# SDR CALA2023031500737

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 2023
- Submitted: March 15, 2023
- Operation: Air carrier
- Aircraft: [N14731](https://openairdocs.org/aircraft/N14731), registered now
- Make and model: Boeing 737*
- Aircraft serial: 28799
- Aircraft time: 74,478 hours, 26,567 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Battery Pack
- Part number: ADD71701100
- Part serial: 24162
- Condition: Failed
- Location: M1675
- Stage of operation: IN
- How discovered: O
- Nature of condition: L
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023031500737

## Discrepancy

EMERGENCY POWER PACK, M1675, FAILS EMERGENCY LIGHTING FUNCTIONAL CHECK, BATTERY DISCHARGES IN LESS THAN 10 MINS. (REF. AAR NR 99962694). REMOVED AND INSTALLED NEW BATTERY PACK M1675 IAW B737 AMM   33-51-06-960-805 TEST GOOD (WORK ACCOMPLISHED BY V936248 & AAR  QC A-74 V918045).

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