# SDR 2001FA0000310

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 4, 2001
- Submitted: September 19, 2001
- Operation: General aviation
- Aircraft: [N4087R](https://openairdocs.org/aircraft/N4087R), registered now
- Make and model: Piper PA-32-300
- Registry model: [Piper PA-32-300](https://openairdocs.org/model/piper-pa-32-300) (OpenAirDocs)
- Aircraft serial: 3240405
- Engine: Lyc TIO540*
- System (JASC): [2922 · Hydraulic Filter, Auxiliary](https://openairdocs.org/jasc/2922)
- Part: Valve
- Part number: 53E19600
- Part serial: 59808
- Condition: Mismanufactured
- Location: Thermal Bypass
- Part time: 1,087 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2001FA0000310

## Discrepancy

NUT CAME OFF THE THERMOSTATIC BYPASS VALVE AND FELL INTO THE OIL SUMP.   CUSTOMER COMPLAINT, HIGH OIL TEMPERATURE.

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