Service difficulty report · Anti-Ice Valve · Boeing 737890

Difficulty date
January 12, 2017
Submitted
January 18, 2017
Operation
Air carrier
Aircraft
N518AS
Make and model
Boeing 737890
Aircraft serial
35693
Aircraft time
30,690 hours, 9,073 cycles
Part
Anti-Ice Valve
Part number
672906002
Part serial
GWD37424A
Condition
Failed
Location
Lt Wing
Part time
60,801 hours, 26,806 cycles
Stage of operation
LD
How discovered
O
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

AFTER LANDING SWITCHING TO APU PWR THE NR 1 COWL VALVE / WING ANTI ICE VALVE CIRCUIT BREAKER POPPED. GROUNDED - YES. NO HISTORY PAST 90 DAYS, OPENED & GVI P18-3A6 C/B NO DEFECTS NOTED. GND IDLE NR 1 ENG OPS CHECKED NR 1 ENG ANTI-ICE ON GENERATOR & APU PWR, P18-3A6 C/B NR 1 ENG. ENGINE AND WING CONTROL STILL OPEN. REPLACED NR 1 ENG WTAI S/O VALVE PER AMM 30-11-11, LEAK TEST & OPS TEST GOOD. PREFORMED BONDING CHECK OF WING - ANTI-ICE VALVE ON LEFT WING REF AMM 30-11-11 TEST GOOD.