Service difficulty report · Valve · Boeing 777222

Difficulty date
October 25, 2012
Submitted
November 15, 2012
Operation
Air carrier
Aircraft
N796UA
Make and model
Boeing 777222
Aircraft serial
26931
Aircraft time
65,774 hours, 9,273 cycles
Engine
Pwa PW40903
Part
Valve
Part number
8102294
Part serial
6
Condition
Faulty
Location
Ac Bay
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

LEFT TRIM AIR PRSOV STATUS MSG WITH TRIM AIR L EICAS MSG. LEFT TRIM AIR PRSOV LOCKED IN CLOSED POSITION PER MEL. ACP'D REPLACEMENT OF VALVE.