Service difficulty report · Anti-Ice Valve · Boeing 767322

Difficulty date
February 19, 2010
Submitted
February 19, 2010
Operation
Air carrier
Aircraft
N672UA
Make and model
Boeing 767322
Aircraft serial
30027
Aircraft time
36,986 hours, 9,788 cycles
Engine
Pwa PW4056
Part
Anti-Ice Valve
Part number
7732887810
Part serial
73
Condition
Faulty
Location
Rt Engine
Stage of operation
IN
How discovered
9
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

RT BLEED WOULD OPEN AFTER ENG START. RT ENGINE COWL ANTI-ICE VALVE LOCKED CLOSED INSTEAD OF RT PRSOV FOR BLEED PROBLEM. RT ENG NAI VALVE REACTD, BACK TO NML POSITION. REPLACED R-PRVC WITH BORRWED PART, NO HELP, BLD WOULD NOT OPEN. REPLACED RT ENGINE PRSOV AND ACCOMPLISHED SYSTEM TEST PER JRH. SYSTEM TEST IS NORMAL. ACCOMPLISHED REPAIR OF GROUND WIRES. TOTAL OF SIX WIRES. SYSTEM TESTS NORMAL.