# SDR ASAA2015121914322

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 2015
- Submitted: December 22, 2015
- Operation: Air carrier
- Aircraft: [N592AS](https://openairdocs.org/aircraft/N592AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35190
- Aircraft time: 30,611 hours, 9,447 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Control Unit
- Part number: 8300005604
- Part serial: 1382C
- Condition: Failed
- Location: Window Heat
- Part time: 14,111 hours, 6,149 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015121914322

## Discrepancy

RIGHT SIDE WINDOW OVERHEAT AT 360, FOLLOWED QRH LIGHT ILLUMINATED AGAIN AFTER 5 MIN IAW CHECKLIST.  ACFT GROUNDED. OPERATED WINDOW HEAT FOR MORE THAN 1 HR AND COULD NOT DUPLICATE. R & R WINDOW HEAT CONTROLLER, CHECKED RESISTANCE OF WINDOW HEAT FILM AND FOUND IT WITHIN LIMITS REF AMM 30-41-21.  REPLACED WINDOW HEAT CONTROLLER, WINDOW HEAT GROUND VERIFICATION TEST.  OPS CK GOOD REF AMM 30-41-00.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.