Probable cause
The pilot’s failure to maintain control while hovering in gusty wind conditions, resulting in the helicopter rolling onto its side.
NTSB analysis
The pilot stated he was maneuvering the helicopter around and near the airport property. While practicing hovering, he was evaluating the left lateral cyclic trim control. The helicopter encountered wind and rolled, coming to rest on its left side. During the accident sequence, the main rotor blades severed the tail boom from the airframe.
The pilot stated there were no pre impact mechanical malfunctions or failures with the helicopter that would have precluded normal operation. At the time of the accident, the wind was from 320° at 11 knots, gusting to 17 knots.
Text from the NTSB. Open the NTSB docket for WPR26LA188 for the full record.
Event
- Date
- May 14, 2026
- Type
- Accident
- Place
- Twin Falls, Idaho
- Nearest airport
- Joslin Fld/Magic Valley Rgnl (TWF)
- Highest injury
- Minor
- Minor injuries
- 1
- Weather
- Visual (VMC)
- Light
- Day
Mcdonnell Douglas Helicopter 500
- N-number
- N952SF
- Category
- Helicopter
- Year built
- 1989
- Damage
- Substantial
- Operating rule
- Part 91 (general aviation)
- Purpose of flight
- Personal
From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.