Pilot Receiving Instruction Made “Reverse Command” Control Inputs Which Led To Side-To-Side Oscillations

Location: Carson City, Nevada Accident Number: ANC24LA024
Date & Time: April 16, 2024, 09:45 Local Registration: N976BG
Aircraft: Evolution Aircraft Inc Revo Aircraft Damage: Substantial
Defining Event: Loss of control on ground Injuries: 2 None
Flight Conducted Under: Part 91: General aviation - Instructional

Analysis: The flight instructor reported that it was the first takeoff in a weight-shift control aircraft for the pilot receiving instruction. During the takeoff roll, the aircraft veered left and then right, then rolled on its side and exited the runway. According to the flight instructor, the pilot receiving instruction made “reverse command” control inputs which led to side-to-side oscillations, which progressed without correction from the flight instructor. The pilot reported no pre-impact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Probable Cause and Findings: The National Transportation Safety Board determines the probable cause(s) of this accident to be -- The pilot receiving instruction’s failure to maintain control of the weight-shift control aircraft, during takeoff, which resulted in collision with terrain. Contributing to the accident was the flight instructor’s delayed remedial action.

FMI: www.ntsb.gov