Service difficulty report · Check Valve · Boeing 777222

Difficulty date
October 3, 2010
Submitted
October 8, 2010
Operation
Air carrier
Aircraft
N204UA
Make and model
Boeing 777222
Aircraft serial
28713
Aircraft time
52,637 hours, 7,502 cycles
Engine
Pwa PW4090
Part
Check Valve
Part number
S210W110102
Part serial
247
Condition
Faulty
Location
Nr 1 Engine
Stage of operation
NR
How discovered
9
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

NR1 ENGINE LT INTERMEDIATE PRESSURE CHECK VALVE FLAPPER END PLAY CLEARANCE IS MORE THAN .030. REPLACED CHECK VALVE. OPS NORMAL.