# SDR SWAA2018051722011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2018
- Submitted: May 17, 2018
- Operation: Air carrier
- Aircraft: [N257WN](https://openairdocs.org/aircraft/N257WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32515
- Aircraft time: 41,459 hours, 24,518 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Controller
- Part number: 10618336
- Part serial: 8069D
- Condition: Faulty
- Location: Cockpit
- Stage of operation: DE
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2018051722011

## Discrepancy

L1 WINDOW ARCED DURING DESCENT.  R&R L1 WINDOW HEAT CONTROLLER PER MM.

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