# SDR ASAA2012112593370

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 25, 2012
- Submitted: November 27, 2012
- Operation: Air carrier
- Aircraft: [N506AS](https://openairdocs.org/aircraft/N506AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35690
- Aircraft time: 17,076 hours, 5,452 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Controller
- Part number: 8300005604
- Part serial: 12669D
- Condition: Malfunctioned
- Location: Window Heat
- Part time: 17,083 hours, 5,454 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2012112593370

## Discrepancy

ON CLIMB OUT (ABOUT 25,000 FT) LT SIDE WINDOW OVERHEAT LIGHT CAME ON,   FOLLOWED QRH, AFTER 3 MINUTES TURNED SWITCH ON,  1.5 MIN LATER OVER HEAT LIGHT CAME ON AGAIN,  FINISHED QRH PROCEDURE.  ACCOMPLISHED FIM TASK 30-41, TASK 811.  FOUND 2 SENSOR FAULTS ON CONTROLLER.  LAST 2 CYCLES.  WINDOW OPERATED FINE ON GROUND.  SENSOR OHMS AT 321 OHMS.  WELL WITHIN TOLERANCE.  REPLACED CONTROLLER AS PRECAUTIONARY.  OPS GOOD IAW TASK 30-41-00-710-801.

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