# SDR ASAA2017050620663

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 6, 2017
- Submitted: May 9, 2017
- Operation: Air carrier
- Aircraft: [N440AS](https://openairdocs.org/aircraft/N440AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41705
- Aircraft time: 14,101 hours, 4,686 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Control Unit
- Part number: 8300005604
- Part serial: 20930E
- Condition: Failed
- Location: Window Heat
- Part time: 14,085 hours, 4,678 cycles
- Stage of operation: NR
- 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/ASAA2017050620663

## Discrepancy

LEFT SIDE WINDOW OVERHEAT DID NOT CLEAR AFTER QRH PROCEDURE TO TURN OFF 2 -5 MINUTES. GROUNDED - YES. VERIFIED DISCREPANCY. REMOVED AND INSTALLED NEW LEFT SIDE WINDOW HEAT CONTROLLER, REF 30-41-11. OPS TEST, REF AMM 30-41-00. SYSTEM CHECKS NORMAL.

---
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.