# SDR 2010FA0000155

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 19, 2010
- Submitted: February 12, 2010
- Operation: General aviation
- Aircraft: [N414FB](https://openairdocs.org/aircraft/N414FB), registered now
- Make and model: Cessna 414A
- Registry model: [Cessna 414A](https://openairdocs.org/model/cessna-414a) (OpenAirDocs)
- Aircraft serial: 414A1203
- Engine: Cont TSIO520NB
- Propeller: Hartzl PHCC3YF2
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: AEC631397
- Condition: Cracked
- Location: Engine
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2010FA0000155

## Discrepancy

ON BOTH ENGINES, FOUND FUEL STAINS ON SEVERAL INDUCTION TUBES AFTER FURTHER INSPECTION FOUND FUEL STAINS ON CYLINDER FINS BY INTAKE VALVES/ REMOVED AND REPLACED ALL CYLINDERS/ LOOKING AT PAST RECORDS FOUND THAT INDUCTION GASKETS HAD BEEN CHANGED SEVERAL TIMES AND LEAKING CONTINUED TO INCREASES OVER TIME.  CRACKED CYLINDERS IS MOST LIKELY CAUSE SENT CYLINDERS BACK TO RAM ACFT INSP.

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