# SDR AALA202009229010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 21, 2020
- Submitted: September 23, 2020
- Operation: Air carrier
- Aircraft: [N757AN](https://openairdocs.org/aircraft/N757AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 32636
- Aircraft time: 72,706 hours, 9,199 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Part serial: 60788
- Condition: Inoperative
- Location: Emergency Lights
- 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/AALA202009229010

## Discrepancy

AIRCRAFT WAS GROUNDED, SHORT TERM STORAGE.  4R DOOR EMERGENCY LIGHT POWER SUPPLY UNIT M33408 INOPERATIVE.  REMOVED AND REPLACED EMERGENCY LIGHTS POWER SUPPLY M33408, IAW AMM 33-51-06-960-803.  TEST GOOD.

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