Service difficulty report · Sensor · Boeing 737990ER

Difficulty date
February 25, 2018
Submitted
February 27, 2018
Operation
Air carrier
Aircraft
N486AS
Make and model
Boeing 737990ER
Aircraft serial
44107
Aircraft time
9,855 hours, 3,299 cycles
Part
Sensor
Part number
PSE21
Condition
Failed
Location
Window Heat
Stage of operation
NR
How discovered
O
Nature of condition
N
Precautionary procedure
K

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

What was found

FWD R WINDOW OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. T/S FOUND WINDOW HEAT PRIMARY SENSOR FAILED. PLACED SENSOR SWITCH IN SECONDARY/SPARE POSITION REF AMM 30-41-00. OPS NORMAL.