Service difficulty report · Anti-Ice Valve · Boeing 737890

Difficulty date
November 12, 2010
Submitted
November 16, 2010
Operation
Air carrier
Aircraft
N518AS
Make and model
Boeing 737890
Aircraft serial
35693
Aircraft time
6,462 hours, 1,933 cycles
Part
Anti-Ice Valve
Part number
32156184
Part serial
6268
Condition
Failed
Location
Nr 1 Intake
Part time
4,287 hours, 1,703 cycles
Stage of operation
TX
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

NR 1 ENG ANTI ICE VALVE REMAINED ILLUMINATED OPEN WITH SWITCH POSITIONED OFF. VERIFIED NR 1 ANTI ICE VALVE WILL NOT CLOSE. REMOVED AND REPLACED NR 1 ENG ANTI ICE VALVE REF AMM 30 21 11. OPS CHECK & LEAK CHECK GOOD ON ENGINE RUN.