# SDR ASAA2020122633754

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 26, 2020
- Submitted: December 29, 2020
- Operation: Air carrier
- Aircraft: [N428AS](https://openairdocs.org/aircraft/N428AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36353
- Aircraft time: 18,356 hours, 5,812 cycles
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Warning Light
- Condition: False Activation
- Location: R2 Window
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020122633754

## Discrepancy

ON CLIMB THRU FL280 R2 WINDOW OVERHEAT ILLUMINATED.  RAN CHECKLIST LIGHT EXTINGUISHED AND REMAINED OFF REMAINDER OF THE FLIGHT.  GROUNDED-YES.  CHECK HISTORY AND BITE CHECK ON WINDOW HEAT CONTROLLER UNIT, IAW B737-900 FIM 30-41 TASK 801, NO FAULTS NOTED.  OK FOR SERVICE.

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