SDR ASAA2015100513341

Service difficulty report · Anti-Ice Valve · Boeing 737890

Difficulty date: October 5, 2015
Submitted: October 7, 2015
Operation: Air carrier
Aircraft: N534AS
Make and model: Boeing 737890
Aircraft serial: 35202
Aircraft time: 18,957 hours, 5,567 cycles
Engine: Cfmint CFM567B27
System (JASC): 7510 · Engine Anti-Icing System
Part: Anti-Ice Valve
Condition: Malfunctioned
Location: Nr 1 Engine
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

AFTER ENGINE SHUTDOWN, NR 1 COWL VALVE OPEN LIGHT. REMAINED ON WITH ENGINE ANTI-ICE SWITCH OFF. ACFT GROUNDED. CYCLED NR 1 ENGINE COWL VALVE SWITCH. LIGHT EXTINGUISHED. PERFORMED NR 1 ENGINE COWL ANTI-ICING OPS CHECK IAW AMM 30-21-00-710-801, OPS CHECK NORMAL.