Service difficulty report · Valve · Boeing 777222

Difficulty date
December 28, 2010
Submitted
December 30, 2010
Operation
Air carrier
Aircraft
N206UA
Make and model
Boeing 777222
Aircraft serial
30212
Aircraft time
51,490 hours, 7,457 cycles
Engine
Pwa PW4090
Part
Valve
Part number
32907449
Part serial
888
Condition
Failed
Location
Nr 1 Engine
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

NR 1 ENGINE FAN AIR VALVE CHECK FAILED. ACP ON WU K5294E. 1 ENG FAN AIR VALVE CHECK FAILED. REPLACED VALVE AND PASSED MAT TEST.