On May 9, 1998, a Bell 47G-2 (registration N6714D) was involved in an aviation accident near Fort Walton Bch, FL. Investigators recorded the probable cause as: The loss of engine power for undetermined reasons. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
A helicopter experienced an engine failure at 500-600 feet during cruise, performed an autorotation, and landed in 4-5 feet of water. Waves rolled the helicopter, causing main rotor contact with water. Examination found no mechanical failure or fuel obstruction.
Incident Summary
A helicopter in cruise flight at an altitude of 500 to 600 feet experienced an engine failure. The pilot executed an autorotation, and the helicopter touched down in water with a depth of 4 to 5 feet. Following touchdown, wave action rolled the helicopter to the right, causing the main rotor blades to strike the water and subsequently stop.
Pilot Statements
The pilot reported that the helicopter was carrying approximately 20 gallons of fuel at the time of the accident.
Post-Accident Examination
An inspection of the engine and its accessories revealed no indications of mechanical failure or malfunction. All fuel lines were examined and found to be unobstructed.
What happened in the 9 May 1998 Bell 47G-2 accident near Fort Walton Bch, FL?
A helicopter experienced an engine failure at 500-600 feet during cruise, performed an autorotation, and landed in 4-5 feet of water. Waves rolled the helicopter, causing main rotor contact with water. Examination found no mechanical failure or fuel obstruction.
What aircraft was involved and where did it happen?
The accident on 9 May 1998 involved a Bell 47G-2, registration N6714D, at Fort Walton Bch, FL.
What was the probable cause of the accident?
The loss of engine power for undetermined reasons.
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