# SDR CALA2025041503861

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2025
- Submitted: April 15, 2025
- Operation: Air carrier
- Aircraft: [N37308](https://openairdocs.org/aircraft/N37308), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 67564
- Aircraft time: 5,199 hours, 1,831 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Module
- Part number: 233A3201313
- Part serial: F09619
- Condition: Faulted
- Location: Zone 200
- Part time: 5,179 hours, 1,825 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025041503861

## Discrepancy

ALL 4 WINDOW OVHT LIGHTS  ILLUMINATED. COMPLIED W /FM PROCEDURE. LIGHTS  REMAINED ILLUMINATED. FOUND ALL 4 CIRCUIT BREAKERS OPENED.  RESET ALL CBS AND PERFORMED OPERATIONAL TEST FOR WINDOW HEAT TEST AND OVERHEAT TEST PER AMM 30-41-00-710-801. AS A PERCAUTION REMOVED AND REPLACED WINDOW PITOT HEAT MODULE PER AMM 30-00-02-400-801. OPERATIONAL CHECKED OK PER AMM 30-31-00-730-801.

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