Service difficulty report · Anti-Ice Valve · Boeing 777222

Difficulty date
December 15, 2010
Submitted
December 17, 2010
Operation
Air carrier
Aircraft
N799UA
Make and model
Boeing 777222
Aircraft serial
26926
Aircraft time
56,208 hours, 8,183 cycles
Engine
Pwa PW4090
Part
Anti-Ice Valve
Part number
S218W1015
Part serial
80
Condition
Faulty
Location
Nose Cowl
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

LT ENGINE ANTI-ICE (EAI) VALVE FAILURE TO THE CLOSED POSITION OR LEFT EAI CONTROL CARD FAILURE. VALVE IS LOCKED IN OPEN POSITION. REPLACED NOSE COWL ANTI-ICE VALVE. OPS CHECKS OKAY.