Service difficulty report · Check Valve · Boeing 777222

Difficulty date
August 13, 2008
Submitted
January 8, 2009
Operation
Air carrier
Aircraft
N209UA
Make and model
Boeing 777222
Aircraft serial
30215
Aircraft time
36,149 hours, 4,836 cycles
Engine
Pwa PW4090
Part
Check Valve
Part number
568131509000
Condition
Faulty
Location
Fuel System
Stage of operation
CR
How discovered
O
Nature of condition
K
Precautionary procedure
O

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

What was found

FUEL APPEARS TO XFR TO THE RT TANK AT 600-HR OR MORE. SUPPLEMENTAL DATA UPDATE REMOVED AND REPLACED LT AND RT WING BOOST PUMP DISCHARGE CHECK VALVES. OPS CHECK AND LEAK CHECK GOOD. LT FWD SERIAL NR RMV 172231-15 INST 1072645-42, AFT RMV 172231-18 INST 1066737-32, RT FWD RMV NR 133888-2 INST 1072645-47, RT AFT RMV 172231-18 INST 1066737-28.