Service difficulty report · Control Unit · Boeing 767322

Difficulty date
June 20, 2024
Submitted
June 20, 2024
Operation
Air carrier
Aircraft
N677UA
Make and model
Boeing 767322
Aircraft serial
30029
Aircraft time
80,997 hours, 15,661 cycles
Part
Control Unit
Part number
3B391B
Part serial
N3491
Condition
Unknown
Location
Oven
Part time
29,589 hours, 4,182 cycles
Stage of operation
CL
How discovered
O
Nature of condition
B
Precautionary procedure
A

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

What was found

ALL REAR GALLEY OVEN CIRCUIT BREAKERS POPPED DURING CLIMBOUT SETTING SDR FLAG. INSPECTED BEHIND CB PANEL NO SIGN OF ARCING OR ANY FAULTS T/S PER SSM 25-31-02-102, NO FAULTS FOUND, REMOVED AND REPLACED BOTH RIGHT ELCU S AS PRECAUTIONARY, REF AMM 25-31-03-404-009. OPS CHECK GOOD. PARTS USED: 1563980,QTY :1 PARTS USED: 1563980,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1563980 SN OFF 3491 IPC REFERENCE # 2531102 CONTROL, LOAD, OFF 99-2531-9-0002 3491 ON 99-2531-9-0002 6664