# SDR AALA201906109018

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 7, 2019
- Submitted: June 10, 2019
- Operation: Air carrier
- Aircraft: [N753AN](https://openairdocs.org/aircraft/N753AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 30261
- Aircraft time: 72,754 hours, 9,065 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- 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/AALA201906109018

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHTNING SYSTEM TEST AT ZONE 3L WOULD NOT ILLUMINATE DOOR EXIT SIGNS. MAINTENANCE REPLACED POWER SUPPLY PER 31-51-06.

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