Service difficulty report · Control Unit · Boeing 737890

Difficulty date
January 15, 2019
Submitted
January 18, 2019
Operation
Air carrier
Aircraft
N596AS
Make and model
Boeing 737890
Aircraft serial
35688
Aircraft time
40,633 hours, 12,381 cycles
Part
Control Unit
Part number
8300005604
Part serial
3205
Condition
Failed
Location
Window Heat
Part time
63,572 hours, 23,935 cycles
Stage of operation
DE
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

ON DESCENT LEFT WINDOW HEAT LIGHT CAME ON RAN QRH - LT REMAINED OUT AFTER TURNING BACK ON. GROUNDED - YES. REMOVED AND REPLACED LT SIDE WINDOW HEAT CONTROL UNIT. OPS CKS NML PER AMM 30-41-11.