Service difficulty report · Control Unit · Boeing 737890

Difficulty date
February 24, 2011
Submitted
March 1, 2011
Operation
Air carrier
Aircraft
N562AS
Make and model
Boeing 737890
Aircraft serial
35091
Aircraft time
16,881 hours, 5,129 cycles
Part
Control Unit
Part number
8300005604
Part serial
8230D
Condition
Malfunctioned
Location
Window Heat
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

RIGHT FORWARD WINDOW OVERHEAT LIGHT ILLUMINATED TURNED WINDOW HEAT OFF ALLOWED TIME TO COOL AND BACK ON WINDOW OVERHEAT LIGHT REMAINED ON. FOUND C/B P18 3 WINDSHIELD HEAT CONTROL RT FRONT OPEN RESET BREAKER PER AMM 20 60 01 SYSTEM OPS CHECK GOOD REF MM 30 41 00 GROUND TEST OK. TSR ISSUED CHECKED RIGHT FRONT WINDOW HEAT CONTROL WIRING. NO FAULTS FOUND. C/B C00226 (WINDOW HEAT CONTROL RIGHT FRONT AC) CHECKED OK. REMOVED AND REPLACED RIGHT FRONT WHCU. RIGHT FRONT WHCU OPS CHECK GOOD. REF AMM 30 41 11.