# SDR CALA2025041403754

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2025
- Submitted: April 14, 2025
- Operation: Air carrier
- Aircraft: [N79402](https://openairdocs.org/aircraft/N79402), registered now
- Make and model: Boeing 737924
- Aircraft serial: 30119
- Aircraft time: 63,410 hours, 26,431 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Part serial: 375801
- 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/CALA2025041403754

## Discrepancy

PASSENGER CABIN EMERGENCY LIGHTS, BATTERY PACK M1674 FAILS CAPAC ITY CHECK (REF AAR NR 1000034087) REMOVED AND INSTALLED NEW BATTERY PACK M1674 IAW B737 AMM 33-51-06-960-805, OP. CHECKS GOOD BATTERY PACK FAILED OPS CHECK.

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