Service difficulty report · Circuit Breaker · Boeing 737990ER

Difficulty date
February 19, 2020
Submitted
February 22, 2020
Operation
Air carrier
Aircraft
N477AS
Make and model
Boeing 737990ER
Aircraft serial
40716
Aircraft time
18,973 hours, 5,963 cycles
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

RH NO. 1 WINDSHIELD HEAT INDICATES "OVERHEAT" AT 12 DEGREES C. WINDSHIELD IN SHADE. GROUNDED - YES. FOUND FRONT R/H WINDOW HEAT C.B. OPEN. INSPECTED CIRCUIT BREAKER, NO DEFECTS NOTED REF B737-900 AMM 30-41-710-801