# SDR AALA202001309009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 29, 2020
- Submitted: January 30, 2020
- Operation: Air carrier
- Aircraft: [N788AN](https://openairdocs.org/aircraft/N788AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 30011
- Aircraft time: 75,222 hours, 9,846 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Part serial: 119355
- Condition: No Test
- 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/AALA202001309009

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHTS (EXIT SIGNS) AT DOOR 4R WOULD NOT TURN ON. MAINTENANCE REPLACED FORWARD POWER SUPPLY PER AMM 38-51-06 AND PERFORMED SATISFACTORY OPERATIONAL CHECK.

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