# SDR ASAA2015042411486

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 24, 2015
- Submitted: April 28, 2015
- Operation: Air carrier
- Aircraft: [N537AS](https://openairdocs.org/aircraft/N537AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35204
- Aircraft time: 12,891 hours, 3,851 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Control Unit
- Part number: 8300005604
- Part serial: 11518C
- Condition: Failed
- Location: Window Heat
- Part time: 47,116 hours, 27,358 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/ASAA2015042411486

## Discrepancy

LEFT SIDE WINDOW OVERHEAT LIGHT STAYS ON, RAN QRH. GROUNDED - YES. PERFORMED WINDOW HEAT CONTROL UNIT BITE PROCEDURE PER FIM TASK 30-41 TASK 801. FOUND P5-9 L/H SIDE FAULT. REPLACED WINDOW HEAT CONTROL UNIT L/H SIDE (M322) PER FIM 30-41 TASK 813. OPS CHECK GOOD. NO FAULTS NOTED. GROUND VERIFICATION SUCCESSFUL.

---
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.