# SDR AAL2025F00003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 14, 2025
- Submitted: May 15, 2025
- Operation: Air carrier
- Aircraft: [N778AN](https://openairdocs.org/aircraft/N778AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 29587
- Aircraft time: 100,604 hours, 12,581 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Lever
- Part number: D71702030
- Condition: No Test
- Location: Zone 200
- 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/AAL2025F00003

## Discrepancy

AIRCRAFT WAS GROUNDED: EMERGENCY LIGHTS AT R4 DOOR AND ISLE NOT ILLUMINATE DURING TESTON P.S CHECK. SUSPECT POWER SUPPLY. MAINTENACNE REPLACED POWER SUPPLY AT R4 DOOR IAW AMM 33-51-06.

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