Service difficulty report · Circuit Breaker · Boeing 737990ER

Difficulty date
December 29, 2016
Submitted
January 4, 2017
Operation
Air carrier
Aircraft
N459AS
Make and model
Boeing 737990ER
Aircraft serial
36352
Aircraft time
11,179 hours, 3,669 cycles
Part
Circuit Breaker
Condition
Open
Location
Window Heat
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

TURNED ON WINDOW HEAT AND GOT AN OVERHEAT RIGHT AWAY ON RIGHT FWD WINDOW. GROUNDED - YES. FOUND RIGHT FRONT WINDOW HEAT C/B OPEN. ACCOMPLISHED C/B RESET PROCEDURE, REF AMM 20-60-01-860-801. WINDOW HEAT OPS CHECK NORMAL, REF AMM 30-41-11-710-801.