Probable cause
The pilot's failure to maintain adequate clearance from a tree while maneuvering at a low altitude.
NTSB analysis
The pilot reported that he began a right orbit off the shore of an island about 20 ft above the water. During the maneuver, the helicopter drifted and struck a tree leaning over the water. The helicopter subsequently lost altitude, impacted the water, and came to rest on its right side. The helicopter sustained substantial damage to the main rotor blades and fuselage. The pilot reported that there were no preaccident malfunctions or failures with the helicopter that would have precluded normal operation.
Text from the NTSB. Open the NTSB docket for GAA19CA509 for the full record.
Event
- Date
- Aug 21, 2019
- Type
- Accident
- Place
- Cypress Island, Washington
- Highest injury
- Serious
- Serious injuries
- 1
- Minor injuries
- 2
- Weather
- Visual (VMC)
- Light
- Day
Robinson R44
- N-number
- N7186P
- Category
- Helicopter
- Year built
- 1999
- Damage
- Substantial
- Operating rule
- Part 91 (general aviation)
- Purpose of flight
- Business
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.