Casualties unknown

Engine Failure After Takeoff Leads to Collision with Farm Machinery (N5140U)

Plymouth, FL, US

On August 12, 1983, a Cessna 206 (registration N5140U) operated by Mark S. Zarkovich was involved in an aviation accident near Plymouth, FL. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

After heavy rains, water contaminated the fuel system. Pilot drained tanks but missed water. Engine quit at 300 ft, and during forced landing, aircraft struck farm machinery.

Preflight and Fuel Drain

The aircraft had been parked outside during the previous week, subject to several heavy rain showers. Both the pilot and the pilot-rated passenger stated that they drained the fuel tanks using a one-pound coffee can. They did not observe any appreciable amount of water during the drain procedure.

Flight and Engine Failure

After takeoff, while climbing through an altitude of approximately 300 feet, the engine ceased operation. The pilot initiated a turn toward an agricultural strip located one mile southwest of the Orlando North Airport.

Forced Landing and Collision

While crossing the threshold of the agricultural strip, the aircraft struck a piece of farm machinery that was parked at the end of the strip. The impact separated the landing gear from the aircraft.

Post-Accident Findings

Subsequent examination revealed water in the fuel manifold valve and the fuel injection controller. Draining of the left fuel reservoir yielded two quarts of a mixture comprising 95% water and 5% fuel. Both fuel drain plugs were found to be extremely rusty.

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Frequently asked questions

What happened in the 12 Aug 1983 Cessna 206 accident near Plymouth, FL?

After heavy rains, water contaminated the fuel system. Pilot drained tanks but missed water. Engine quit at 300 ft, and during forced landing, aircraft struck farm machinery.

What aircraft was involved and where did it happen?

The accident on 12 Aug 1983 involved a Cessna 206, registration N5140U, operated by Mark S. Zarkovich, at Plymouth, FL.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X44256. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.