Service difficulty report · Control Unit · Boeing 737890

Difficulty date
May 17, 2016
Submitted
May 19, 2016
Operation
Air carrier
Aircraft
N588AS
Make and model
Boeing 737890
Aircraft serial
35685
Aircraft time
32,649 hours, 9,913 cycles
Part
Control Unit
Part number
8300005604
Part serial
9928D
Condition
Failed
Location
Window Heat
Part time
32,656 hours, 9,916 cycles
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

LEFT SIDE WINDOW OVERHEAT ILLUMINATED. QRH FOLLOWED AND LIGHT EXTINGUISHED. ACFT GROUNDED. BITE CHECK OF WINDOW HEAT CONTROLLER SHOWED CONTROLLER FAULTS, REPLACED LT SIDE WINDOW HEAT CONTROLLER, ALL OPS NORMAL, REF AMM 30-41-11.