SDR ASAA2020033032568

Service difficulty report · Circuit Breaker · Boeing 737890

Difficulty date: March 26, 2020
Submitted: March 30, 2020
Operation: Air carrier
Aircraft: N530AS
Make and model: Boeing 737890
Aircraft serial: 36578
Aircraft time: 38,700 hours, 11,369 cycles
System (JASC): 3040 · Windshield/Door Rain/Ice Removal
Part: Circuit Breaker
Condition: Open
Location: Cockpit
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

FORWARD LEFT WINDOW HEAT (OVERHEAT) LIGHT CAME ON. CHECKLIST OVERHEAT LIGHT CAME BACK ON AFTER RUNNING CHEKCLIST. GROUNDED - YES. FOUND LEFT FRONT C/B OPEN ON P11 PANEL, GVI C/B ACCESSIBLE WIRING, NO DEFECTS NOTED, RESET C/B REF B737-800 AMM 20-60-01 BITE CK LEFT FWD WHCU, LOGGED LEFT FWD BUS PANEL FAULT, RESET & TEST OK REF FIM TASK 30-40- TASK 801 & 806.