SDR ASAA2015112713973

Service difficulty report · Circuit Breaker · Boeing 737890

Difficulty date: November 27, 2015
Submitted: December 1, 2015
Operation: Air carrier
Aircraft: N562AS
Make and model: Boeing 737890
Aircraft serial: 35091
Aircraft time: 35,587 hours, 10,644 cycles
System (JASC): 3040 · Windshield/Door Rain/Ice Removal
Part: Circuit Breaker
Condition: Tripped
Location: Window Heat
Stage of operation: NR
How discovered: 9
Nature of condition: O
Precautionary procedure: O

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

What was found

NR 2 WINDOW AMBER OVERHEAT LIGHT ILLUMINATES WITH NR 2 WINDOW HEAT SWITCH ON. ACFT GROUNDED. FOUND WINDOW HEAT CIRCUIT BREAKER TRIPPED. INSPECTED AND RESET CIRCUIT BREAKER, IAW AMM 20-61-00. ACCOMPLISHED WINDOW HEAT SYS, OPS TEST REF AMM 30-41-00-710-801. WINDOW HEAT, OPS NORMAL, ACTUAL WINDOW OVERHEAT WAS THE RT NR 1 WINDOW, NOT NR 2 WINDOW.