No fatalities
BELL HELICOPTER TEXTRON 206L-1 accident at Chimney Rock, MT, 4 Apr 2026
On April 4, 2026, a BELL HELICOPTER TEXTRON 206L-1 operated by HELIMONTANA.COM LLC was involved in an aviation accident near Chimney Rock, MT. No fatalities were reported. Investigators recorded the probable cause as: The pilot’s failure to maintain adequate clearance from the terrain while performing a low altitude circling takeoff maneuver, which resulted in a dynamic rollover. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.
Probable cause
The pilot’s failure to maintain adequate clearance from the terrain while performing a low altitude circling takeoff maneuver, which resulted in a dynamic rollover.
— NTSB Determination
Contributing factors
PilotContributed to outcome