# SDR ASAA2019021328170

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 13, 2019
- Submitted: February 15, 2019
- Operation: Air carrier
- Aircraft: [N491AS](https://openairdocs.org/aircraft/N491AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44109
- Aircraft time: 13,065 hours, 4,360 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: TX
- 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/ASAA2019021328170

## Discrepancy

LEFT SIDE L2 WINDOW HEAT OVERHEAT LITE ILLUMINATED DURING PREFLIGHT. -FOLLOWED QRH - LIGHT WAS OFF AFTER 3-5 MIN COOL DOWN - THEN OVERHEAT LITE CAME BACK ON AFTER 5 MINS. GROUNDED - YES. RESET SYSTEM, OPS CHECK GOOD, AMM REF 30-41-00-710-801.

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