# SDR 2009FA0000024

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 4, 2008
- Submitted: January 21, 2009
- Operation: General aviation
- Aircraft: [N137P](https://openairdocs.org/aircraft/N137P), registered now
- Make and model: Cessna 206H
- Registry model: [Cessna 206H](https://openairdocs.org/model/cessna-206h) (OpenAirDocs)
- Aircraft serial: 2060804
- Engine: Lyc IO540AC1A5
- Propeller: Mcauly B3D36C432
- System (JASC): [7322 · Fuel Control/Reciprocating Engines](https://openairdocs.org/jasc/7322)
- Part: Servo
- Part number: 25765463
- Part serial: 70BU7308
- Condition: Leaking
- Location: Engine
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2009FA0000024

## Discrepancy

FUEL SERVO LEAKED WHILE ACFT WAS PARKED OVERNIGHT.  THE MIXTURE WAS IN CUT OFF POSITION.  FLIGHT MANUAL, SEC 4, NORMAL PROCEDURES PAGE 4-23 SECURING ACFT NR 10 STATES: FUEL SELECTOR VALVE RT OR LT TO PREVENT CROSS FEEDING.  IF THE FUEL SELECTOR VALVE WAS TURNED TO OFF, THIS WOULD HAVE PREVENTED.  THERE IS A POTENTIAL FOR FUEL TO ENTER ENGINE CYLINDERS AND OIL SUMP IF THE FUEL SERVO MIXTURE CUT OFF LEAKS USING FLIGHT MANUAL PROCEDURES.  NEED TO ADDRESS: FLIGHT MANUAL PROCEDURES TO FUEL SELECTOR VALVE OFF.  (K)

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