# SDR ASAA2022031137673

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 11, 2022
- Submitted: March 14, 2022
- Operation: Air carrier
- Aircraft: [N468AS](https://openairdocs.org/aircraft/N468AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41735
- Aircraft time: 28,391 hours, 9,063 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Control Unit
- Part number: 8300005604
- Part serial: 22253E
- Condition: Inoperative
- Location: E/E Rack E2-1
- Part time: 28,379 hours, 9,057 cycles
- Stage of operation: NR
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022031137673

## Discrepancy

LEFT FWD WINDOW HEAT INOP. GROUNDED - YES. REMOVED AND REPLACED LEFT FWD WINDOW HEAT CONTROL UNIT AND COOLED WINDOW WITH CLEANING FLUID. PERFORMED FUNCTIONAL TEST PER B737-900 AMM 30-41-00, TEST GOOD. REF AMM 30-41-11 FOR REPLACEMENT.

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