Service difficulty report · Circuit Breaker · Boeing 747422

Difficulty date
October 3, 2008
Submitted
October 10, 2008
Operation
Air carrier
Aircraft
N128UA
Make and model
Boeing 747422
Aircraft serial
30023
Aircraft time
34,562 hours, 4,178 cycles
Engine
Pwa PW4056
Part
Circuit Breaker
Condition
Faulty
Location
Oven
Stage of operation
NR
How discovered
O
Nature of condition
W
Precautionary procedure
O

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

What was found

PIGTAIL BURNING ON OVEN N51. POWER WAS REMOVED. PULLED AND CAPPED CIRCUIT BREAKER. RESET CONTROLLER, USING HI TECH GALLEY CART LOAD TESTER ALL VOLTAGES CHECK OKAY. ALL THREE LEVELS. CORD CHECKS OKAY.