Service difficulty report · Control Unit · Boeing 737890

Difficulty date
October 25, 2008
Submitted
October 28, 2008
Operation
Air carrier
Aircraft
N559AS
Make and model
Boeing 737890
Aircraft serial
35178
Aircraft time
8,292 hours, 2,489 cycles
Part
Control Unit
Part number
8300005604
Part serial
8186D
Condition
Malfunctioned
Location
E&E Bay
Part time
8,292 hours, 2,489 cycles
Stage of operation
DE
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 SIDE WINDOW OVERHEAT LIGHT ILLUMINATED DURING DESCENT. FOLLOWED QRH PROCEDURE LIGHT EXTINGUISHED. PERFORMED BITE ON WINDOW HEAT CONTROL UNIT AND P5 9 OVERHEAT TEST PASSED OPS CHECK GOOD REF AMM 30 41 00.