Service difficulty report · Wire Harness · Boeing 767322

Difficulty date
August 3, 2025
Submitted
August 6, 2025
Operation
Air carrier
Aircraft
N661UA
Make and model
Boeing 767322
Aircraft serial
27158
Aircraft time
123,645 hours, 18,829 cycles
Part
Wire Harness
Part number
CN1156308
Part serial
154423
Condition
Faulted
Location
Zone 100
Part time
31,421 hours, 4,319 cycles
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

AT CRUISE CALC FUEL DROPPED 5K BELOW PROJECTED BURN. FUEL INDICATIONS. UNRELIABLE PERFORMED FQIS BITE IAW FIM TASK 28-41, FAULT TREE 847, SELF TEST PASSED, NO ACTIVE OR PRESENT FAULTS. FLT HISTORY, FLT LEG 00, FOUND FAULT CT DENS SENSE WIRE SHORTED A02. DURING DEBRIEF PILOT ALSO MENTIONED 1000 FUEL IMBALANCE, LT BEING LOW, WITHIN 30 MIN OF TAKEOFF. FAULT HISTORY SHOWS CT DENSE HARNESS SHORTED. REMOVED CTR TANK D SENSE HARNESS IAW AMM 28-41-09. OPS CHECKED GOOD IAW AMM 28-41-715-001-002. COMPLIED W ITH ALL CDCCL STEPS REQUIRED. NO LEAKS NOTED. IDT PERFORMED FOR CDCCL AND LEAK CHECK.