# SDR CALA2026022013935

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 19, 2026
- Submitted: February 20, 2026
- Operation: Air carrier
- Aircraft: [N79541](https://openairdocs.org/aircraft/N79541), registered now
- Make and model: Boeing 737824
- Aircraft serial: 63725
- Aircraft time: 26,160 hours, 9,746 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701100
- Condition: Discharged
- 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/CALA2026022013935

## Discrepancy

AIRCRAFT EMERGENCY LIGHT DONT TURN ON, ON SEAT AFT OF THE EXIT ROW. REMOVED AND REPLACED EMERGENCY BATTERY PACK M1672. OPS CHECK OF EMERGENCY LIGHTS GOOD. REF AMM 33-51-06 PARTS USED: 99-3351-3-0015,QTY :1

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