SDR ASAA2021101936346

Service difficulty report · Unknown · Boeing 737990ER

Difficulty date: October 19, 2021
Submitted: October 21, 2021
Operation: Air carrier
Aircraft: N464AS
Make and model: Boeing 737990ER
Aircraft serial: 40714
Aircraft time: 28,567 hours, 8,964 cycles
System (JASC): 3040 · Windshield/Door Rain/Ice Removal
Part: Unknown
Part number: UNKNOWN
Condition: Unknown
Location: Unknown
Stage of operation: CR
How discovered: V
Nature of condition: M
Precautionary procedure: O

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

What was found

L SIDE WINDOW HEAT OVERHEAT LIGHT ILLUMINATED FOR THE 2ND TIME IN THE SAME FLIGHT. SWITCH OFF. GROUNDED - YES. REMOVED, CLEANED, AND REINSTALLED WHCU M322 REF B737-900 AMM 30-41-11 PERFORMED WHCU BITE TEST. SYS TEST PASSED REF B737-900 FIM 30-41 TASK 801THIS CLEARS MEL 30-11E, PLACARD, AND CN REMOVED. SEAMC JARED NOTIFIED.