# SDR AALA20160429002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2016
- Submitted: April 29, 2016
- Operation: Air carrier
- Aircraft: [N781AN](https://openairdocs.org/aircraft/N781AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 29586
- Aircraft time: 65,151 hours, 7,906 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Part serial: 12278
- Condition: Inoperative
- Location: Cabin
- 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/AALA20160429002

## Discrepancy

AIRCRAFT WAS IN BASE MX.  4L DOOR EMER POWER SUPPLY M33407 IS INOPERATIVE.  R & R POWER SUPPLY & ACCOMPLISHED OPERATIONAL TEST IAW AMM 33-51-06.

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