# SDR CALA2026022714117

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2026
- Submitted: February 27, 2026
- Operation: Air carrier
- Aircraft: [N75429](https://openairdocs.org/aircraft/N75429), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 30130
- Aircraft time: 53,563 hours, 19,222 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- 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/CALA2026022714117

## Discrepancy

EMERGENCY CEILING AREA LIGHTS OVER 29D AND 34D DO NOT ILLUMINATE.  REMOVED AND REPLACED THE BATTERY PACK AT POWER SUPPLY M2627.  OPS CHECKED GOOD IAW AMM 33-51-06-960-805.

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