# SDR ASAA2022030937660

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 9, 2022
- Submitted: March 17, 2022
- Operation: Air carrier
- Aircraft: [N593AS](https://openairdocs.org/aircraft/N593AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35107
- Aircraft time: 51,500 hours, 15,355 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Window
- Part number: 56100025
- Part serial: 18303H3384
- Condition: Faulted
- Location: Flight Deck
- Part time: 8,531 hours, 2,385 cycles
- Stage of operation: CR
- How discovered: V
- Nature of condition: M
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022030937660

## Discrepancy

WINDOW HEAT "OVERHEAT LIGHT" LEFT L SIDE, ILLUMINATED IN FLIGHT AND REMAINS ILLUMINATED AFTER PERFORMING QRH CHECKLIST. GROUNDED - YES. PERFORMED B737-800 FIM 30-41 TASK 811 FOR THE L2 WINDOW, WHCU FAULTS SENSOR CURRENTLY AND IN FAULT HISTORY. TEMPERATURE SENSOR RESISTANCE OUT OF LIMITS. REF L/P 60035425, L2 WINDOW ALREADY ON SPARE SENSOR. REMOVED W0420-1001-20 FROM TERMINAL #2 TO #1 PER B737-800 WDM 30-40-11 AND B737-800 AMM 56-12-11-400-801 STEP F. (9) REMOVED AND REPLACED L2 SLIDING WINDOW REF AMM 56-12-11-400-801. OPS & LEAK CHECK GOOD.

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