Service difficulty report · Control Unit · Boeing 737890

Difficulty date
August 17, 2015
Submitted
August 19, 2015
Operation
Air carrier
Aircraft
N557AS
Make and model
Boeing 737890
Aircraft serial
35176
Aircraft time
35,450 hours, 10,464 cycles
Part
Control Unit
Part number
8300005604
Part serial
8022D
Condition
Overheated
Location
Window Heat
Part time
35,445 hours, 10,463 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

RT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED. ACFT GROUNDED. CONFIRMED RT SIDE WINDOW OVERHEAT LIGHT REMAINS ILLUMINATED. RT SIDE WINDOW SHOWS WHCU FAULT. REPLACED RT SIDE WCHU IAW AMM 30-41-11-000-081/400-801. OPS CHECK NORMAL IAW SAME.