Service difficulty report · Circuit Breaker · Boeing 737890

Difficulty date
March 1, 2013
Submitted
March 5, 2013
Operation
Air carrier
Aircraft
N579AS
Make and model
Boeing 737890
Aircraft serial
35187
Aircraft time
23,157 hours, 6,903 cycles
Part
Circuit Breaker
Condition
Open
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 FWD WINDOW HEAT OVERHEATED. IT WOULD NOT RESET. FOUND P6-12, B8 WINDOW HEAT POWER RT FRONT CIRCUIT BREAKER OPEN. CIRCUIT BREAKER AT A POSITION FOR PRO-GEAR TO POSSIBLY GRAB. RESET CIRCUIT BREAKER IAW GPM 05-00-91. BITE TEST OF WHCU OPS NORMAL IAW AMM 30-41-11-710-801. WINDOW HEAT SYS OPS NORMAL IAW AMM 30-41-00-710-801. GROUND VERIFICATION SUCCESSFUL.