What was found
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.
- Difficulty date
- May 14, 2025
- Submitted
- May 15, 2025
- Operation
- Air carrier
- Aircraft
- N778AN
- Make and model
- Boeing 777223
- Aircraft serial
- 29587
- Aircraft time
- 100,604 hours, 12,581 cycles
- System (JASC)
- 3350 · Emergency Lighting
- 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
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.