Service difficulty report · Check Valve · Boeing 777222

Difficulty date
April 9, 2013
Submitted
May 15, 2013
Operation
Air carrier
Aircraft
N773UA
Make and model
Boeing 777222
Aircraft serial
26929
Aircraft time
71,466 hours, 13,557 cycles
Engine
Pwa PW4077
Part
Check Valve
Part number
8102051
Condition
Failed
Location
Left
Stage of operation
IN
How discovered
V
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

FOUND LT BYPASS FAN AIR CHECK VALVE AND RUBBER BOOT BLOWN AND BROKEN. REMOVED AND REPLACED BYPASS CHECK VALVE. REPLACED BOOT, LEAK CHECKED GOOD.