# SDR CALA2026010712727

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 6, 2026
- Submitted: January 7, 2026
- Operation: Air carrier
- Aircraft: [N38451](https://openairdocs.org/aircraft/N38451), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 31646
- Aircraft time: 42,645 hours, 15,778 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: Inoperative
- 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/CALA2026010712727

## Discrepancy

EMERGENCY LIGHTS - OPERATIONAL CHECK EMERGENCY LIGHTS OPERATIONAL CHECK - EMERGENCY LIGHTS SEAT ROWS 8-14 INOP. REPLACED EMERGENCY LIGHT BATTERY SUPPLY M2505 PER AMM TASK 33-51-06-960-805. OPERATIONAL TEST GOOD.

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