SDR ASAA2016031415908

Service difficulty report · Controller · Boeing 737990ER

Difficulty date: March 14, 2016
Submitted: March 16, 2016
Operation: Air carrier
Aircraft: N467AS
Make and model: Boeing 737990ER
Aircraft serial: 36362
Aircraft time: 7,211 hours, 2,348 cycles
System (JASC): 3040 · Windshield/Door Rain/Ice Removal
Part: Controller
Part number: 8300005604
Part serial: 21940E
Condition: Failed
Location: Window Heat
Part time: 7,196 hours, 2,341 cycles
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

DURING CLIMB, RIGHT SIDE WINDOW OVERHEAT ILLUMINATED. ACCOMPLISHED QRH, BUT OVERHEAT LIGHT ILLUMINATES IF WINDOW IS POWERED, SWITCH ON. ACFT GROUNDED. DUPLICATED DISCREPANCY. RESISTANCE OF R2 WINDOW TEMP SENSOR WAS NORMAL, REF AMM 30-41-21. REPLACED WHCU FOR R2, REF AMM 30-41-11. OPS NORMAL IAW SAME.