Service difficulty report · Controller · Boeing 74747UF

Difficulty date
April 25, 2019
Submitted
April 26, 2019
Operation
Air carrier
Aircraft
N493MC
Make and model
Boeing 74747UF
Aircraft serial
29254
Aircraft time
84,611 hours, 13,595 cycles
Part
Controller
Part number
29155
Part serial
111
Condition
Faulted
Location
Window Heat
Stage of operation
CR
How discovered
O
Nature of condition
M, B
Precautionary procedure
H, A

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

What was found

RIGHT WINDOW WIRE STARTED TO SMOKE, WIRE TO HOT TO TOUCH. TURNED OFF RIGHT WINDOW HEAT(<P>INSPECTION FOUND WINDOW HEAT CONTROL CONTROL CONNECTOR INSULATION MELTED AND WINDOW HEAT CONTROLLER 1R FAULTY. REMOVED AND REPLACED CONTROLLER R1 PER AMM 30-41-01 AND 30-41-01 AND CONNECTOR PER SWPM 20-10-13. R1 WINDOW HEAT OPS CHECK NORMAL. CONNECTOR P/N CWC01-1210</P>)

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