Service difficulty report · Circuit Breaker · Boeing 737990ER

Difficulty date
July 3, 2022
Submitted
July 5, 2022
Operation
Air carrier
Aircraft
N469AS
Make and model
Boeing 737990ER
Aircraft serial
41702
Aircraft time
29,688 hours, 9,464 cycles
Part
Circuit Breaker
Part number
UNKNOWN
Condition
Popped
Location
Unknown
Stage of operation
NR
How discovered
V
Nature of condition
M
Precautionary procedure
K

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

What was found

LEFT FORWARD WINDOW HEAT OVERHEAT LIGHT CAME ON WITH ASSOCIATED CIRCUIT BREAKER POPPED. GROUNDED - YES. INSPECTED CIRCUIT BREAKER P6-11 FOR WIRE DAMAGE OR ABNORMALITY NO DEFECTS NOTED RESET CB B9 NO CAUTION LIGHT ILLUMINATED. PERFORMED WX CU BITE TEST NO FAULTS INDICATED BIT TEST OK GREEN LIGHT ON ALL UNITS NO FAULT HISTORY.