Service difficulty report · Circuit Breaker · Boeing 777224

Difficulty date
May 21, 2023
Submitted
May 26, 2023
Operation
Air carrier
Aircraft
N77012
Make and model
Boeing 777224
Aircraft serial
29860
Aircraft time
109,678 hours, 11,088 cycles
Part
Circuit Breaker
Part number
NA
Condition
Tripped
Location
Aft Gal L2 Panel
Stage of operation
CL
How discovered
O
Nature of condition
O
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

14 CIRCUIT BREAKERS POPP ED AFT GALLEY ALL CIRCUIT BREAKERS ON AC FEEDER L2 PANEL IN AFT GALLEY TRIPPED. FA NOTICED THS WHEN THEY ATTEMPTED TO USE COFFEE MAKER AND THERE WAS NO POWER . AFTER INSPECTION OF AFT GALLEY (#7 & #8) WIRING PANEL. NO ISSUES 25-33-97-700-801. FOUND WITH CBS AND SWITCHES. RESET BREAKERS AND OPS CHECK ALL AFT GALLEY EQUIPMENT UNDER FULL LOAD FOR AN HOUR. OPS CHECK GOOD. REF. AMM: 25-32-01-700-810-002; 25-32-02-700-801-001;