Service difficulty report · Anti-Ice Valve · Boeing 737890

Difficulty date
January 12, 2009
Submitted
January 16, 2009
Operation
Air carrier
Aircraft
N557AS
Make and model
Boeing 737890
Aircraft serial
35176
Aircraft time
10,000 hours, 2,945 cycles
Part
Anti-Ice Valve
Part number
32156184
Part serial
5725
Condition
Malfunctioned
Location
Nr 1 Engine
Part time
3,988 hours, 1,310 cycles
Stage of operation
TX
How discovered
V
Nature of condition
J
Precautionary procedure
K

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

What was found

ON GROUND WITH BOTH ENG ANTI ICE SWITCHES SELECTED OFF THE LT (AMBER) TAI INDICATION IS SHOWN BY THE NR 1 ENG N1 GAUGE. GROUNDED YES. REPLACED NR 1 ENG TAI VALVE REF MM 30 21 11 000 801. OPS CK NORMAL REF MM 30 21 00 710 801.