SDR ASAA2019082130451

Service difficulty report · Anti-Ice Valve · Boeing 737890

Difficulty date: August 21, 2019
Submitted: August 23, 2019
Operation: Air carrier
Aircraft: N579AS
Make and model: Boeing 737890
Aircraft serial: 35187
Aircraft time: 47,410 hours, 14,066 cycles
Engine: Cfmint CFM567B27
System (JASC): 7510 · Engine Anti-Icing System
Part: Anti-Ice Valve
Part number: 32156184
Part serial: 6425
Condition: Intermittent
Location: Nr 1 Inlet
Part time: 28,160 hours, 9,082 cycles
Stage of operation: CL
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

DURING CLIMBOUT, LEFT ENG ANT-ICE, YELLOW TAI LIGHT BLINKING FROM 3,000-10,000, ALSO BLINKING IN CRUISE AT FL400 ENG AI SWITCHES WERE OFF. GROUNDED - YES. REMOVED AND REPLACED L/H ENGINE COND TAI VALVE, PER B737-800 AMM 30-21-11. OPS CHECK GOOD.