SDR ASAA2020021873197

Service difficulty report · Circuit Breaker · Boeing 737890

Difficulty date: February 17, 2020
Submitted: February 19, 2020
Operation: Air carrier
Aircraft: N518AS
Make and model: Boeing 737890
Aircraft serial: 35693
Aircraft time: 41,984 hours, 12,454 cycles
System (JASC): 3040 · Windshield/Door Rain/Ice Removal
Part: Circuit Breaker
Condition: Tripped
Location: Window Heat
Stage of operation: NR
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

RT SIDE WINDOW HEAT CAUTION. DID NOT CLEAR AFTER RUNNING CHECKLIST. GROUNDED - YES. FOUND C/B C228 OPEN. GVI ACCESSIBLE WIRING, NO FAULTS FOUND, REF B737-800 WDM 30-41-11. REF B737-800 AMM 20-60-01, RESET C/B. OPERATED WINDOW HEAT. C/B REMAINS SET, WINDOW HEAT OPS NORMAL. HAS NO OTHER RECENT HISTORY.