Engine failure and subsequent crash near Marathon Airport

No fatalities • Marathon, United States of America • Takeoff (climb)

An aircraft experienced a dual engine failure during its initial climb following takeoff from Marathon Airport, resulting in a crash into the ocean.

What happened

During the early stages of flight following departure from Marathon Airport, an aircraft experienced a simultaneous loss of power in both engines. The event occurred while the plane was in its initial climb phase. Due to the loss of propulsion, the aircraft entered a stall and descended into the ocean, striking the water just a short distance from the shoreline.

While the aircraft was destroyed in the accident, the pilot survived the impact without any injuries. Emergency responders were able to locate and rescue the pilot shortly after the crash occurred.

Findings

Investigations into the accident determined that the dual engine failure was the result of improper fuel management during the preflight stage. Specifically, the investigation concluded that the pilot had failed to properly prepare the aircraft, leaving the fuel selector valve positioned between the two fuel tanks, which prevented a consistent fuel supply to the engines.

Probable cause

The simultaneous failure of both engines was caused by the pilot's failure to correctly set the fuel selector valve during preflight preparations.

Frequently asked questions

What happened in the 1965-07-10 Beechcraft C18S accident near Marathon, United States of America?

An aircraft experienced a dual engine failure during its initial climb following takeoff from Marathon Airport, resulting in a crash into the ocean.

Were there any fatalities in the 1965-07-10 Beechcraft C18S accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 1965-07-10 involved a Beechcraft C18S, registration N7871B, operated by Monroe County Mosquito Control District (MCMCD), at Marathon, United States of America.

What was the probable cause of the accident?

The simultaneous failure of both engines was caused by the pilot's failure to correctly set the fuel selector valve during preflight preparations.

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