NTSB Identification: MKC86FA017.
The docket is stored on NTSB microfiche number 28839.
Accident occurred Friday, October 25, 1985 in PLATTSBURG, MO
Aircraft: SILVAGGIO CASSUTT 111M, registration: N4AS
Injuries: 1 Serious.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE ACFT WAS LEVEL, IN CRUISE WHEN THE PLT NOTICED HIGH ENG TEMPERATURES. HE STATED THAT HE STARTED A SHALLOW CLIMB AND HEADED FOR THE NEAREST ARPT. EN ROUTE TO NEAREST ARPT, SMOKE CAME INTO THE COCKPIT AND THE PLT HEARD A LOUD NOISE THAT WAS ACCOMPANIED BY SMOKE AND FLAMES INSIDE THE ENG COMPARTMENT. PLT SHUT OFF FUEL VALVE. THE ACFT WAS TOO HIGH AND TOO FAST AS IT APPROACHED THE ARPT. THE PLT TRIED S TURNS BUT RAN OUT OF CONTROL DURING THE SECOND S. THE ACFT TOUCHED DOWN 100 FT TO THE WEST OF THE RWY AND 40 DEGS OFF THE RWY HEADING. THE RIGHT WING HIT STEEL FENCE POSTS AND BARBED WIRE. AFTER GROUND IMPACT THE ACFT FLIPPED UP AND AROUND AND STOPPED ON THE ARPT PROPERTY. INVESTIGATION REVEALED A BROKEN PISTON, A BROKEN PISTON PIN AND A SEPARATED CYLINDER HEAD ON THE NUMBER FOUR CYLINDER.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

ENGINE ASSEMBLY,PISTON..FAILURE,PARTIAL

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

ENGINE ASSEMBLY,CYLINDER..FAILURE,PARTIAL

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