Service difficulty report · Control Unit · Boeing 737890

Difficulty date
November 12, 2012
Submitted
November 14, 2012
Operation
Air carrier
Aircraft
N566AS
Make and model
Boeing 737890
Aircraft serial
35182
Aircraft time
22,579 hours, 6,937 cycles
Part
Control Unit
Part number
8300005604
Part serial
8445D
Condition
Overheated
Location
Window Heat
Part time
22,572 hours, 6,936 cycles
Stage of operation
TX
How discovered
O
Nature of condition
M
Precautionary procedure
D

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

What was found

AFTER PUSH BACK AND ENGINE START FOS R2 WINDOW HEATED UP TO THE POINT OF UNTOUCHABLE AND BEGAN TO DELAMINATE. ACFT GROUNDED. R & R R2 WINDSHIELD IAW AMM 56-12-11-000-801 & 56-12-11-400-801. PERFORMED R2 OPENABLE WINDOW INSPECTION IAW AMM 56-12-11-200-801. R & R RT SIDE WINDOW HEAT CONTROLLER IAW AMM 30-41-11. PERFORMED WINDOW HEAT OPS TEST IAW AMM 30-41-11. ALL OK. NO DISCREPANCIES FOUND.