SDR ASAA2016102118445

Service difficulty report · Anti-Ice Valve · Boeing 737890

Difficulty date: October 21, 2016
Submitted: October 24, 2016
Operation: Air carrier
Aircraft: N557AS
Make and model: Boeing 737890
Aircraft serial: 35176
Aircraft time: 39,703 hours, 11,714 cycles
System (JASC): 3020 · Air Intake Anti/De-Ice System
Part: Anti-Ice Valve
Part number: 32156184
Part serial: 1631C
Condition: Failed
Location: Nr 1 Nacelle
Part time: 45,818 hours, 19,208 cycles
Stage of operation: NR
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

LEFT ENGINE ANTI-ICE BLUE LIGHT REMAINS BRIGHT BLUE WHEN SELECTED ON. ALTERNATE DEACTIVATION PROCEDURES CH 5-07-01, TABLE 3 ITEMS 3, 4, 5, 9, & 10. GROUNDED - YES. REMOVED AND REPLACED NR 1 ENG COWL TAI VALVE REF B737-800 AMM 30-21-11. OPS CHECK GOOD REF B737-800 AMM 30-21-00-710-801.ALTERNATE DEACTIVATION PROCEDURES REVERSED.