# SDR 2002FA0000083

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 16, 2001
- Submitted: January 23, 2002
- Operation: General aviation
- Aircraft: N8353K
- Make and model: Robsin R44
- Aircraft serial: 0348
- Engine: Lyc O540F1B5
- System (JASC): [7922 · Engine Oil Temperature Regulator](https://openairdocs.org/jasc/7922)
- Part: Vernatherm
- Part number: 53E22144
- Condition: Stuck
- Location: Oil Cooler
- Part time: 797 hours
- Stage of operation: NR
- How discovered: O
- Nature of condition: M, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2002FA0000083

## Discrepancy

HIGH OIL TEMPERATURES, AT RED LINE 245 DEGREES, VERIFIED BY DECREASE IN OIL PRESSURE.  FOUND VALVE STUCK, NOT EXTENDING.  REMOVED AND REPLACED WITH NEW PART.  OPS CHECKED GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.