Service difficulty report · Control Unit · Boeing 737890

Difficulty date
April 13, 2011
Submitted
April 15, 2011
Operation
Air carrier
Aircraft
N587AS
Make and model
Boeing 737890
Aircraft serial
35684
Aircraft time
13,117 hours, 3,922 cycles
Part
Control Unit
Part number
8300005604
Part serial
9738D
Condition
Failed
Location
Window Heat
Part time
13,117 hours, 3,922 cycles
Stage of operation
NR
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

F/O OUTER WINDOW FRACTURED. F/O NOTED ARCING ON UPPER RT FRAME FOLLOWED BY FRACTURE. ACCOMPLISHED CHECKLIST. NO FURTHER DETERIORATION. REMOVED AND REPLACED R FRONT WINDOW CONTROLLER PER MM 30-41-11. REPLACED F/O'S NR 1 WINDOW PER MM 56-11-11. WINDOW HEAT CONTROLLER OPS CHECK GOOD PER MM 30-41-11.