N672BB Evolution Aircraft Inc REVOLT accident

NTSB CEN26LA243 · 2026-06-30 · Peyton, CO · near KFLY

Docket — crew, injuries and powerplant

Factual narrative

According to the flight instructor, the student pilot aligned the weight-shift control trike with the runway centerline and began the takeoff roll. As the speed increased, the student pilot began moving the control bar forward to the liftoff position. It was then that something did not seem right. The flight instructor directed the student pilot to reduce engine power and reject the takeoff. It was then that the aircraft made a “snap” turn to the right and rolled onto its left side damaging the left wing. The flight instructor stated there were no mechanical failures or malfunctions with respect to the aircraft before the accident. He noted that the student pilot may have inadvertently had pressure against the left pedal which caused the snap turn to the right when he reduced throttle, which was on the left. The flight instructor stated further that if the student pilot had been instructed to reduce engine power slowly while maintaining the runway centerline, the accident might have been prevented. The aircraft flight manual noted that, with respect to ground handling, left pedal pressure corresponded to right taxi steering. Similarly, right pedal pressure corresponded to left taxi steering.

Probable cause

The flight instructor’s inadequate supervision of the student pilot, which resulted in the loss of control during a rejected takeoff. The National Transportation Safety Board determined the probable cause of this accident.

Circumstances

Event type
Accident
Highest injury
Serious
Weather conditions
Visual Meteorological Cond
Light condition
Day
Sky condition
NONE
Ceiling (ft)
0
Visibility (sm)
10
Wind direction
0
Wind speed (kt)
0
Temperature (F)
59
Nearest airport
Meadow Lake
Distance from field
0.5
Airport elevation
6878

Aircraft

RegistrationMakeModelDamageFAR part
N672BB EVOLUTION AIRCRAFT INC REVOLT SUBS 091

Sequence of events

#OccurrencePhase
2 Takeoff-rejected takeoff Loss of control on ground defining Takeoff

Findings

Finding
Personnel issues-Psychological-Attention/monitoring-Task monitoring/vigilance-Instructor/check pilot cause
Personnel issues-Task performance-Use of equip/info-Aircraft control-Student/instructed pilot cause
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained cause