Helicopter Tailboom Severed During Low-Altitude Hover

Casualties unknown • Nome, AK, US

A helicopter sustained severe structural damage when the aircraft contacted a slope during a low-altitude hover intended for wildlife filming.

What happened

During a flight intended to allow a passenger to videotape wildlife, a helicopter was performing a hover at approximately 5 feet above the ground. The left door of the aircraft had been removed for the duration of the flight to facilitate filming through the opening.

While in this low-altitude hover, the aircraft contacted a slope with an incline of 15 to 20 degrees. According to the pilot, the passenger inadvertently pushed the dual cyclic control stick forward. Before corrective action could be taken, the impact occurred. In an attempt to recover, the pilot abruptly moved the cyclic control stick aft; however, this maneuver caused the tail rotor to strike the ground. The resulting motion caused the main rotor blades to strike the aircraft, ultimately cutting off the tailboom.

The passenger provided a conflicting account, stating that while the event was possible, he did not believe he had pushed the control stick. He suggested that the pilot may have been distracted by the wildlife and inadvertently caused the aircraft to hit the ground.

Probable cause

The inadvertent forward movement of the dual cyclic control stick during a low-altitude hover, leading to contact with a sloped surface and subsequent structural failure of the tailboom.

Frequently asked questions

What happened in the 1992-08-24 Hughes 269A accident near Nome, AK?

A helicopter sustained severe structural damage when the aircraft contacted a slope during a low-altitude hover intended for wildlife filming.

What aircraft was involved and where did it happen?

The accident on 1992-08-24 involved a Hughes 269A, registration N5006M, operated by Smith, Timothy E., at Nome, AK.

What was the probable cause of the accident?

The inadvertent forward movement of the dual cyclic control stick during a low-altitude hover, leading to contact with a sloped surface and subsequent structural failure of the tailboom.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X15302. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

Loading the flight search…