# SDR ASAA2021101936346

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 19, 2021
- Submitted: October 21, 2021
- Operation: Air carrier
- Aircraft: [N464AS](https://openairdocs.org/aircraft/N464AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 40714
- Aircraft time: 28,567 hours, 8,964 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- 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/ASAA2021101936346

## Discrepancy

L SIDE WINDOW HEAT OVERHEAT LIGHT ILLUMINATED FOR THE 2ND TIME IN THE SAME FLIGHT. SWITCH OFF. GROUNDED - YES. REMOVED, CLEANED, AND REINSTALLED WHCU M322 REF B737-900 AMM 30-41-11 PERFORMED WHCU BITE TEST. SYS TEST PASSED REF B737-900 FIM 30-41 TASK 801THIS CLEARS MEL 30-11E, PLACARD, AND CN REMOVED. SEAMC JARED NOTIFIED.

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