SDR AALA202202278902

Service difficulty report · Power Supply · Boeing 777223

Difficulty date: January 25, 2022
Submitted: February 27, 2022
Operation: Air carrier
Aircraft: N794AN
Make and model: Boeing 777223
Aircraft serial: 30256
Aircraft time: 81,029 hours, 10,515 cycles
System (JASC): 3350 · Emergency Lighting
Part: Power Supply
Condition: Inoperative
Location: Zone 200 - Fuse
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

AIRCRAFT WAS GROUNDED: EMERGENCY EXIT LIGHTS INOPERATIVE IN BUSINESS AND MAIN CABIN EXTRA SECTIONS. **SUPPLEMENTAL REPORT: REPLACED POWER SUPPLIES M33096, M33097, M33098, M33400, M33404, AND M33408 WITH NEW (AALA202201265519, AALA202202273183, AALA202202271693, AALA202202273720, AALA202202274547) IAW AMM 33-51-06, OPS CHECK GOOD.** (CLOSED)