Service difficulty report · Control Valve · Boeing 777222

Difficulty date
October 12, 2010
Submitted
October 13, 2010
Operation
Air carrier
Aircraft
N772UA
Make and model
Boeing 777222
Aircraft serial
26930
Aircraft time
60,334 hours, 11,127 cycles
Engine
Pwa PW4077
Part
Control Valve
Part number
8102044
Part serial
89
Condition
Faulty
Location
Flow
Stage of operation
IN
How discovered
9
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

UPPER TORQUE MOTOR NOT IN THE COMMANDED POSITION. THIS FAILURE WILL LEAD TO SERVICE DISRUPTIONS IF LT UNCORRECTED. CHECKING ASSOCIATED WIRE AND CONNECTOR FOR DEFECTS. NONE NOTED. REPLACED THE RT PACK UPPER FCV, V21512. REPLACED UPPER FLOW CONTROL AND SHUTOFF VALVE. OPS NORMAL.