# SDR AALA20160616016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 15, 2016
- Submitted: June 21, 2016
- Operation: Air carrier
- Aircraft: [N770AN](https://openairdocs.org/aircraft/N770AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 29578
- Aircraft time: 69,718 hours, 8,786 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Part serial: 8949
- Condition: Inoperative
- Location: Cabin
- Part time: 40,917 hours, 11,612 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/AALA20160616016

## Discrepancy

AIRCRAFT WAS IN BASE MAINTENANCE.  EMERGENCY LIGHT POWER SUPPLY M33400 IS INOPERATIVE.  R & R POWER SUPPLY AND ACOMMPLISHED OPS CHECK IAW AMM 33-51-06.  SYSTEM CHECKS NORMAL.

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