Casualties unknown

Student Pilot Loses Control During Hover, Resulting in Dynamic Rollover (N2779R)

Sand Springs, OK, US

On July 25, 1986, a Bell 206B (registration N2779R) was involved in an aviation accident near Sand Springs, OK. Investigators recorded the probable cause as: The student pilot's failure to maintain directional control during the hover, which resulted in a dynamic rollover after the right skid contacted the ground. 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 2026-06-22Data APIEditorial standards

A student pilot experienced a dynamic rollover while hovering at low altitude. The aircraft drifted right, causing the skid to contact the ground and flip the helicopter over.

What happened

The accident occurred while a student pilot was operating a helicopter in a hovering configuration. At the time of the incident, the aircraft was positioned approximately three feet above the ground. During this maneuver, the pilot allowed the helicopter to drift laterally toward the right side.

The specific aircraft involved was equipped with high skid gear, a modification intended to provide additional clearance. However, as the lateral drift continued, the right skid made contact with the terrain. This contact triggered a dynamic rollover event, causing the aircraft to tip over onto its side.

At the time of the accident, the student pilot had accumulated a total of 44.2 hours of flight time. Of this total, only 1.5 hours were logged as solo flight time.

Probable cause

The student pilot's failure to maintain directional control during the hover, which resulted in a dynamic rollover after the right skid contacted the ground.

All Bell 206 accidents →

Frequently asked questions

What happened in the 25 Jul 1986 Bell 206B accident near Sand Springs, OK?

A student pilot experienced a dynamic rollover while hovering at low altitude. The aircraft drifted right, causing the skid to contact the ground and flip the helicopter over.

What aircraft was involved and where did it happen?

The accident on 25 Jul 1986 involved a Bell 206B, registration N2779R, at Sand Springs, OK.

What was the probable cause of the accident?

The student pilot's failure to maintain directional control during the hover, which resulted in a dynamic rollover after the right skid contacted the ground.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X34190. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.