Service difficulty report · Shutoff Valve · Boeing 777222

Difficulty date
April 23, 2012
Submitted
May 25, 2012
Operation
Air carrier
Aircraft
N776UA
Make and model
Boeing 777222
Aircraft serial
26937
Aircraft time
65,939 hours, 11,754 cycles
Engine
Pwa PW4077
Part
Shutoff Valve
Part number
8102294
Part serial
135
Condition
Inoperative
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 LEFT TRIM AIR PRSOV NOT CLOSING. REMOVED LEFT TRIM AIR PRSOV REF MM. INSTALLED NEW TRIM AIR PRSOV PER MM. MAT TEST PASSED.