Service difficulty report · Control Unit · Boeing 7474H6

Difficulty date
January 24, 2015
Submitted
January 28, 2015
Operation
Air carrier
Aircraft
N741CK
Make and model
Boeing 7474H6
Aircraft serial
24315
Aircraft time
70,899 hours, 12,441 cycles
Part
Control Unit
Part number
29155
Part serial
1559
Condition
Failed
Location
Window Heat
Stage of operation
CR
How discovered
9
Nature of condition
B
Precautionary procedure
O

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

What was found

IN FLIGHT, R1 WINDOW ARCED AND SMOKE WAS PRODUCED. R & R R1 WINDOW HEAT CONTROL UNIT IAW MM 30-41-01. OPS CHECKS GOOD. R & R R1 WINDOW IAW MM 56-11-01, OPS CHECKED GOOD.

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