Service difficulty report · Window · Boeing 737990ER

Difficulty date
August 20, 2016
Submitted
August 22, 2016
Operation
Air carrier
Aircraft
N442AS
Make and model
Boeing 737990ER
Aircraft serial
43293
Aircraft time
10,991 hours, 3,566 cycles
Part
Window
Part number
56100026
Part serial
13231H6603
Condition
Failed
Location
Cockpit
Part time
11,002 hours, 3,570 cycles
Stage of operation
AP
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

ON FINAL, ANTI-ICE MASTER CAUTION, RT SIDE WINDOW HEAT OVERHEAT LIGHT ILLUMINATED. FOLLOWED QRH, AND LT WINDOW HEAT SWITCH OFF. ACFT GROUNDED. REF FIM 30-41-00-810-801, WHCU BITE RT SIDE SHOWS SENSOR FAULT. NEW RT SIDE WINDOW IS AN H15, REPOSITIONED WINDOW HEAT WIRE TAP ACCORDINGLY, REF WDM 30-41-11. REMOVED OLD AND INSTALLED NEW RT SIDE WINDOW, REF AMM 56-12-11-000-801 AND AMM 56-12-11-400-801. ACCOMPLISHED NR 2. RT WINDOW ADJUSTMENT, REF AMM 56-12-11-820-801. ADJUSTMENT WITHIN LIMITS AND OPS CHECK NORMAL. PERFORMED RT SIDE WINDOW HEAT OPS TEST, REF AMM 30-41-00-710-801. TEST/OPS CHECK PASSED. PERFORMED CABIN PRESSURE LEAK TEST IAW 055-51-91-790-801. TEST GOOD.