Probable cause
The pilot's inappropriate low altitude maneuvering, which resulted in a collision with terrain.
NTSB analysis
A ranch employee reported that he and another employee were onboard the helicopter with the pilot when they spotted a bull that had become entangled in plastic wrapping material. Both employees egressed the helicopter in an effort to try to cut the plastic off the animal. The pilot maneuvered the helicopter in an attempt to herd the bull toward them with no success. The pilot then attempted to land the helicopter on a portion of the plastic that was trailing behind the bull, which would aid the employees in being able to approach it. After that was unsuccessful, the pilot tried to knock the bull down with the helicopter. The pilot eventually managed to maneuver the helicopter's right skid under the plastic and began to elevate the bull. As the helicopter moved forward, it moved to the right and impacted the ground, killing the pilot and the bull.
Text from the NTSB. Open the NTSB docket for ANC10LA053 for the full record.
Event
- Date
- Jun 20, 2010
- Type
- Accident
- Place
- Unalaska, Alaska
- Highest injury
- Fatal
- Fatal injuries
- 1
- Weather
- Visual (VMC)
- Light
- Day
Robinson Helicopter R44
- N-number
- N333DV
- Category
- Helicopter
- Damage
- Substantial
- Operating rule
- Part 91 (general aviation)
- Purpose of flight
- Other work use
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.