# SDR CALA2026101220267

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 7, 2026
- Submitted: October 12, 2026
- Operation: Air carrier
- Aircraft: [N15751](https://openairdocs.org/aircraft/N15751), registered now
- Make and model: Boeing 737724
- Aircraft serial: 29047
- Aircraft time: 80,166 hours, 32,995 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 99335130015
- 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/CALA2026101220267

## Discrepancy

EMERGENCY LIGHT BATTERY PACK AT M1672 FAILED OPERATION CHECK. REMOVED AND REPLACED M1672 BATTERY IAW AMM 33-51-06 OPS CHK GOOD.

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