Service difficulty report · Sensor · Boeing 747422

Difficulty date
September 5, 2013
Submitted
September 6, 2013
Operation
Air carrier
Aircraft
N104UA
Make and model
Boeing 747422
Aircraft serial
26902
Aircraft time
64,108 hours, 7,429 cycles
Engine
Pwa PW4056
Part
Sensor
Condition
Defective
Location
Fuel System
Stage of operation
IN
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

FUEL IMBALANCE 5HR 12MIN INTO FLT. TANK 249.9 &TANK 3 43.8 EICAS MESSAGE DISPLAYED. ACCOMPLISHED INBD FLOAT SCAVENGE SYSTEM CHECKED HIGH LEVEL IAW MM GOOD. REPLACED SINGLE POINT SENSOR IAW PTT 1082004. OPERATIONS CHECKED NORMAL.