# SDR ASAA2019043089189

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 28, 2019
- Submitted: April 30, 2019
- Operation: Air carrier
- Aircraft: [N413AS](https://openairdocs.org/aircraft/N413AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 35205
- Aircraft time: 24,186 hours, 7,855 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Heater
- Condition: Malfunctioned
- Location: Cockpit Window
- Stage of operation: DE
- 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/ASAA2019043089189

## Discrepancy

WINDOW HEAT LEFT SIDE CAME BACK ON DURING DESCENT INTO PDX. GROUNDED - YES. PERFORMED WHCU SYS TEST IAW B737-900 AMM 30-41-11-710-801. NO FAULT NOTED. GREEN LIGHT SHOWN. OPS NORMAL.

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