# SDR ASAA2019121643610

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2019
- Submitted: December 17, 2019
- Operation: Air carrier
- Aircraft: [N448AS](https://openairdocs.org/aircraft/N448AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36356
- Aircraft time: 14,609 hours, 4,709 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Warning Light
- Condition: False Activation
- Location: Rt Window
- Stage of operation: CR
- 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/ASAA2019121643610

## Discrepancy

AFTER 5-10 MIN IN CRUISE FLIGHT AT FL 340, R SIDE WINDOW HEAT ANNUNCIATOR ILLUMINATED. FOLLOWED QRH AND CYCLED SWITCH OFF FOR 5 MINUTES,THEN BACK ON. LIGHT REMAINED EXTINGUISHED. GROUNDED - YES. ACCOMPLISHED WHC BITE WITH NO CURRENT FAULTS. CONTOLLER HAD LOGGED #1 SENSOR, REF B737-900 AMM 30-41-00.

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