Service difficulty report · Control Valve · Boeing 777222

Difficulty date
January 23, 2012
Submitted
February 6, 2012
Operation
Air carrier
Aircraft
N782UA
Make and model
Boeing 777222
Aircraft serial
26948
Aircraft time
65,326 hours, 9,429 cycles
Engine
Pwa PW40903
Part
Control Valve
Part number
8102042
Part serial
109102
Condition
Faulty
Location
Ac Bay
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

RT PACK UPPER FCV RPLC. AHM SHOWS MSG 21-24102 WITH 3 HITS IN LAST 7 FLTS FOR UPPER FCV TORQUE MOTOR NOT IN THE COMMANDED POSITION. THIS WILL LEAD TO SERVICE DISRUPTIONS IF LEFT UNCORRECTED. REFERENCE FIM 21-51, TASK 818, CHECK ASSOCIATED WIRE AND CONNECTOR FOR DEFECTS AND IF OK REPLACE THE RT PACK UPPER FCV, V21512, PCN 646-9007. ENTER MESSAGE NUMBER ON REMOVAL TAG. SFOLM 01-06-12. REPLACED RIGHT UPPER FVC.