SDR FDEA202508181496

Service difficulty report · Power Supply · Boeing 777FS2

Difficulty date: August 18, 2025
Submitted: August 18, 2025
Operation: Air carrier
Aircraft: N855FD
Make and model: Boeing 777FS2
Aircraft serial: 37726
Aircraft time: 57,787 hours, 9,266 cycles
System (JASC): 3350 · Emergency Lighting
Part: Power Supply
Part number: D71702001
Part serial: 301732
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.

What was found

2 EMERGENCY LIGHTS IN COURIER AREA ABOVE R1 ARE INOP. ONE INOPERATIVE LIGHT LOCATED ABOVE GALLEY AREA, SECOND INOPERATIVE LIGHT LOCATED NEAR R1 DOOR. AMM: 33-51-06-2, AMM: 33-51-00-5. REPLACED RIGHT POWER SUPPLY PER AMM 33-51-06-2, ACCOMPLISHED EMERGENCY LIGHTS TEST PER AMM 33-51-00-5, TEST PASSED. ACFT OK TO CONTINUE.

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