# SDR ASAA2018042724425

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2018
- Submitted: April 30, 2018
- Operation: Air carrier
- Aircraft: [N440AS](https://openairdocs.org/aircraft/N440AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41705
- Aircraft time: 18,005 hours, 6,008 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Sensor
- Condition: Failed
- Location: Window Heat
- Part time: 10,521 hours, 3,593 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/ASAA2018042724425

## Discrepancy

LEFT FWD WINDOW OVERHEAT LIGHT ILLUMINATED,  DID NOT RESET WITH CHECKLIST.  ACFT GROUNDED.  ACCOMPLISHED WHCV BITE IAW FIM 30-41 TASK 801. CAPTAIN`S FWD WINDOW SENSOR FAULTED.  RANG BOTH SENSORS AT CONNECTORS D1044A PINS 13, 26 BOTH SENSORS RANG OPEN IAW WDM 30-41-11.  REMOVED AND REPLACED THE L1 WINDOW IAW AMM 56-11-11-000-801.  REPOSITIONED THE TERMINAL TAP FROM TERMINAL FWD TO TERMINAL ONE ON TB5010 OF M321 WHCU. OPS AND LEAK CHECKED GOOD.

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