# SDR AALA2020042109010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2020
- Submitted: April 21, 2020
- Operation: Air carrier
- Aircraft: [N779AN](https://openairdocs.org/aircraft/N779AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 29955
- Aircraft time: 84,894 hours, 10,095 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: P71702001
- 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/AALA2020042109010

## Discrepancy

AIRCRAFT NOT GROUNDED - EMERGENCY LIGHTS, LEFT AISLE, CEILING FROM ROWS 31-37 INOPERATIVE. REMOVED AND REPLACED BULBS, NO HELP. REMOVED AND REPLACED POWER SUPPLY PER AMM 33-51-06-960-803, OPERATIONAL CHECKS NORMAL.

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