# SDR AALA20170725006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2017
- Submitted: July 27, 2017
- Operation: Air carrier
- Aircraft: [N790AN](https://openairdocs.org/aircraft/N790AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 30251
- Aircraft time: 67,868 hours, 8,693 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Part serial: 5851
- Condition: No Test
- Location: Emergency Lights
- Part time: 39,097 hours, 6,162 cycles
- 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/AALA20170725006

## Discrepancy

EMERGENCY EXIT CEILING LIGHT IN LEFT ZONE A,  IS INOPERATIVE.  REMOVED AND REPLACED THE POWER SUPPLY M33099 IAW AMM 33-51-06.  OPS CHECKED GOOD.

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