# SDR ASAA2017111822619

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 18, 2017
- Submitted: November 20, 2017
- Operation: Air carrier
- Aircraft: [N433AS](https://openairdocs.org/aircraft/N433AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41704
- Aircraft time: 16,253 hours, 5,318 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: AP
- 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/ASAA2017111822619

## Discrepancy

ON SHORT FINAL "L" SIDE WINDOW OVERHEAT LIGHT CAME ON, TURNED OFF SWITCH AND LANDED. GROUNDED - YES. AFTER PERFORMING AMM 30-41-00-710-801, FIM 30-41 TASK 814 AND FIM 30-41 TASK 801, DETERMINED FAULT TO BE INTERMITTENT AFTER BEING UNSUCCESSFUL IN DUPLICATING THE FAULT. DUE TO THE MULTIPLE FAULTS RECORDED IN THE APPLICABLE WHCU, OPENED 2 C/B'S, DISCONNECTED THE WIRE FROM THE PRIMARY SENSORS "D" TERMINAL AND INSTALLED ON THE SPARE "D" TERMINAL PER FIM 30-41 TASK 811. PERFORMED OPS TEST PER AMM 30-41-11-710-801, GOOD. REMOVED MEL 30-11E.

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