# SDR AALA202607282561

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 2026
- Submitted: July 28, 2026
- Operation: Air carrier
- Aircraft: [N807NN](https://openairdocs.org/aircraft/N807NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31077
- Aircraft time: 49,070 hours, 20,799 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Part serial: 196722
- 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/AALA202607282561

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: AFT LEFTHAND EMERGENCY CEILING LIGHT INOPERATIVE. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY M1673 IAW AMM 33-51-06.

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