# SDR AALA202302096813

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2023
- Submitted: February 9, 2023
- Operation: Air carrier
- Aircraft: [N723AN](https://openairdocs.org/aircraft/N723AN), registered now
- Make and model: Boeing 777323ER
- Aircraft serial: 33125
- Aircraft time: 38,962 hours, 4,579 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Part serial: 105141
- Condition: Inoperative
- Location: Zone 200 - Fuse
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202302096813

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DURING EMERGENCY LIGHT SYSTEM OPERATIONAL CHECK FOUND CEILING EMERGENCY LIGHTS BETWEEN SEAT 37D AND DOOR 5L INOPERATIVE. REPLACED EMERGENCY LIGHT POWER SUPPLY M33407 PER AMM 33-51-06. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.

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