# SDR ASAA2012122693550

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 26, 2012
- Submitted: December 28, 2012
- Operation: Air carrier
- Aircraft: [N577AS](https://openairdocs.org/aircraft/N577AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35186
- Aircraft time: 22,109 hours, 6,682 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Control Unit
- Part number: 8300005604
- Part serial: 8834D
- Condition: Malfunctioned
- Location: Window Heat
- Part time: 22,109 hours, 6,682 cycles
- Stage of operation: CL
- 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/ASAA2012122693550

## Discrepancy

ON CLIMBOUT PASSING 26000 FT, RT SIDE WINDOW OVERHEAT LIGHT CAME ON.  FOLLOWED QRH,  RETURNED TO NORMAL OPS.   REMOVED & REINSTALLED R2 WINDOW.   SEALS GOOD.  HISTORY SHOWS SENSOR FAULT.  SENSOR OHMS GOOD & TERMINALS ARE TIGHT, REF MM 30-41-21.  REPLACED R2 WINDSHIELD HEAT CONTROL UNIT AS A PRECAUTION.  OPS CHECKED GOOD, REF MM 30-41-11. OPS CHECK R2 WINDOW HEAT GOOD. REF MM 30-41-00.  ALSO REF FIM 30-41/T801.

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