Service difficulty report · Valve · Boeing 777222

Difficulty date
August 22, 2008
Submitted
December 15, 2008
Operation
Air carrier
Aircraft
N223UA
Make and model
Boeing 777222
Aircraft serial
30224
Aircraft time
28,660 hours, 3,711 cycles
Engine
Pwa PW40903
Engine time
15,204 hours, 18,251 cycles
Part
Valve
Part number
16P944
Condition
Faulty
Location
Nr 2 Engine
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

NR 2 ENGINE LT LOWER TURBINE VANE AND BLADE COOLING AIR VALVE WAS FOUND IN THE CLOSED POSITION. BEGAN REMOVAL OF NR 2 ENGINE LT LOWER TVBC VALVE. VALVE IN POSITION ON ENG WITH NEW FLANGE AND LARGE DUCT GASKET INSTALLED. THREE BOLTS LOOSELY INSTALLED ON FLANGE, AWAITING BOLTS TO CONTINUE INSTALLATION. COMPLETED INSTALLATION OF LOWER LT TVBC VALVE ON THE NR 2 ENGINE.