Service difficulty report · Wire · Boeing 747422

Difficulty date
December 26, 2012
Submitted
December 31, 2012
Operation
Air carrier
Aircraft
N178UA
Make and model
Boeing 747422
Aircraft serial
24385
Aircraft time
92,403 hours, 11,113 cycles
Engine
Pwa PW4056
Part
Wire
Part number
60B8900461
Part serial
185
Condition
Burned
Location
Fuel System
Component
Boost Pump
Component part number
60B8900417
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

FOUND BURNT WIRING JUST AFT OF THE BOOST PUMP CONNECTOR. CUT WIRES AT DAMAGED AREA AND RETERMINATED NEW CONNECTOR REF WDM28-22-31 PG2. WIRES DAMAGED 3 INCHES FROM CONNECTOR. ENOUGH SLACK TO RE-TERMINATE. REPAIRED DAMAGED WIRE & REPLACED CONNECTOR. REPLACING BOOST PUMP, OPS AND CLOSE.