# SDR ASAA2019042929187

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2019
- Submitted: May 14, 2019
- Operation: Air carrier
- Aircraft: [N479AS](https://openairdocs.org/aircraft/N479AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 60576
- Aircraft time: 15,212 hours, 4,954 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Control Unit
- Part number: 8300005605
- Part serial: 24263
- Condition: Faulted
- Location: E&E Bay
- Part time: 15,314 hours, 4,987 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/ASAA2019042929187

## Discrepancy

LEFT SIDE WINDOW OVERHEAT. GROUNDED - YES. RELEASED PER MEL 30-11E LEFT NR 2 WINDOW HEAT INOP. FAULT HISTORY SHOWED WINDOW SENSOR. BIT VERIFY GOOD. DUE TO HISTORY REMOVED AND REPLACED L SIDE WINDOW HEAT CONTROL UNIT REF AMM 30-41-11. OPS CHECK GOOD. MEL 30-11E CLEARED.

---
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.