# SDR CALA2024022600549

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 22, 2024
- Submitted: February 26, 2024
- Operation: Air carrier
- Aircraft: [N37523](https://openairdocs.org/aircraft/N37523), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43461
- Aircraft time: 10,047 hours, 3,391 cycles
- System (JASC): [3040 · Windshield/Door Rain/Ice Removal](https://openairdocs.org/jasc/3040)
- Part: Module
- Part number: 233A3201313
- Condition: Failed
- Location: Window Heat
- Stage of operation: CL
- How discovered: O
- Nature of condition: J, O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2024022600549

## Discrepancy

LEFT WINDOW OVHT LIGHT ON IN CLIMB FL315 PERFORMED CONTINUITY CHECK PER FIM 30-41-830 STEPS D3CONTINUITY CHECKS GOOD. FIM RECOMMENDS TO REPLACE P5-9 OVERHEAD PANEL, CONF IRMED FAILURE PER BITE CHECK ON WHC#2.  R & R MODULE , WINDOW / PITOT HEAT AS REQUIRED , REF AMM 30-00-02-401, OPS CHECKED NORMAL. WING BODY OVHT LIGHT ON AT FL295 IN CLIMB PERFOMED SYSTEM TEST AND FAULT AFT CARGO APU SHORT FAULT DETECTED. ELEMENT LOOP 275 WAS PREVIOUSLY REPLACED ON 2-21-2024 BUT ERROR WAS NOT RESET FROM OVERHEAT DETECTOR CONTROLLER. RESET OVERHEAT CONTROLLER TO CLEAR FAULT AND RETESTED SAME WITH NO FURTHER DEFECTS/FAULTS NOTED. A/OK FOR SERVICE.

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