Service difficulty report · Wire Harness · Boeing 767322

Difficulty date
January 17, 2023
Submitted
January 18, 2023
Operation
Air carrier
Aircraft
N665UA
Make and model
Boeing 767322
Aircraft serial
29237
Aircraft time
85,046 hours, 18,452 cycles
Part
Wire Harness
Part number
286T04780AC
Condition
Shorted
Location
Fuel Pump
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
H

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

What was found

R AFTFUEL PUMP EICAS W ASS. PRESSURE LIGHT IN FLIGHT LOCKED, FOUND WIRE SHORTING TO SHIELD. REQUIRES HIGH RESISTANCE TO GROUND, 24K OHMS, AT D1540 POSITION 6 WITH RPLCMNT. KIT ON ORDER. D4410P DISCONNECTED. W478-402Y-18 AND W478-304Y-18 WIRE SHORTED TO GROUND, REF WDM 28-22-11-4.1. POSITION 4 ON AL1004. COMPLETELY REMOVED BUNDLE W478 FROM A/C. REMOVED WIRE BUNDLE W478 AND W476 FROM THE MAIN FUEL PUMP ROUTED HARNESS W476 & W478 THROUGH BOOST,OVERRIDE,JETTISON CONDUIT. REMOVED BUNDLE W478 FROM THE AUX & JETTISON FUEL PUMPS CONDUIT IAW MM 28-22-15. .