SDR ASAA2016033016167

Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date: March 30, 2016
Submitted: April 1, 2016
Operation: Air carrier
Aircraft: N469AS
Make and model: Boeing 737990ER
Aircraft serial: 41702
Aircraft time: 6,533 hours, 2,166 cycles
System (JASC): 3040 · Windshield/Door Rain/Ice Removal
Part: Warning Light
Condition: False Activation
Location: Window Heat
Stage of operation: CR
How discovered: O
Nature of condition: N
Precautionary procedure: O

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

What was found

LEFT SIDE WINDOW HEAT OVERHEAT LIGHT ILLUMINATED IN CRUISE, FL320. RAN QRH, WAITED 5 MINUTES, TURNED SWITCH BACK ON. OVERHEAT LIGHT DID NOT COME ON. ACFT GROUNDED. RESET WHCU BITE AND PERFORMED OPS CHECK OF WINDOW HEAT SYS, REF AMM 30-41-00-839-001. OPS CHECK OK.