# SDR VNFR2015102700507

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 21, 2015
- Submitted: October 27, 2015
- Operation: General aviation
- Aircraft: [N7274C](https://openairdocs.org/aircraft/N7274C), registered now
- Make and model: Cessna T206H
- Registry model: [Cessna T206H](https://openairdocs.org/model/cessna-t206h) (OpenAirDocs)
- Aircraft serial: T20608059
- Engine: Lyc TIO540*
- System (JASC): [8120 · Exhaust Turbocharger](https://openairdocs.org/jasc/8120)
- Part: Drain
- Condition: Coked
- Location: Turbocharger
- Component: Turbocharger
- Component part number: 46P22250B
- Stage of operation: NR
- 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/VNFR2015102700507

## Discrepancy

PILOT REPORTED LOW OIL PRESSURE DURING FLIGHT.  DECLARED EMERGENCY LANDING.  UPON INSPECTION EXCESSIVE COKING WAS FOUND AT TURBOCHARGER DRAIN CAN.  THIS PREVENTED SCAVENGE PUMP FROM RETURNING OIL TO ENGINE RESULTING IN EXCESSIVE OIL LOASS PART THE TURBO SEALS.

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