Service difficulty report · Isolation Valve · Boeing 777222

Difficulty date
December 9, 2008
Submitted
December 11, 2008
Operation
Air carrier
Aircraft
N776UA
Make and model
Boeing 777222
Aircraft serial
26937
Aircraft time
51,371 hours, 9,576 cycles
Engine
Pwa PW4077
Part
Isolation Valve
Part number
32907706
Condition
Seized
Location
Bleed Air Sys
Stage of operation
IN
How discovered
O
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

RIGHT BLEED ISOLATION VALVE SEIZED IN OPEN POSITION. REPLACED ISOLATION VALVE. OPS OKAY.