Saturday, April 22, 2017

Robinson R44 Raven II, S M Hentges & Sons Inc., N744JS: Accident occurred November 12, 2016 in Stone Lake, Washburn County, Wisconsin

Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf 

NTSB Identification: GAA17CA070
14 CFR Part 91: General Aviation
Accident occurred Saturday, November 12, 2016 in Stone Lake, WI
Probable Cause Approval Date: 05/15/2017
Aircraft: ROBINSON HELICOPTER COMPANY R44, registration: N744JS
Injuries: 1 Minor.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The helicopter pilot reported that, during a hover taxi for takeoff, about 3 ft above the ground, he thought that he saw a person at the corner of his driveway. He added that he stopped and that the helicopter drifted to the left. Subsequently, the main rotor blade impacted a tree, which resulted in substantial damage to the fuselage. 
The pilot reported no preaccident mechanical malfunctions or failures with the helicopter that would have precluded normal operation.

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
The pilot’s failure to maintain lateral control while in a hover and the helicopter’s subsequent impact with a tree.



Additional Participating Entity: 
Federal Aviation Administration / Flight Standards District Office; Minneapolis, Minnesota 

Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf

Docket And Docket Items -  National Transportation Safety Board: https://dms.ntsb.gov/pubdms

S M Hentges & Sons Inc: http://registry.faa.gov/N744JS



NTSB Identification: GAA17CA070
14 CFR Part 91: General Aviation
Accident occurred Saturday, November 12, 2016 in Stone Lake, WI
Aircraft: ROBINSON HELICOPTER COMPANY R44, registration: N744JS
Injuries: 1 Minor.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The helicopter pilot reported that during a hover taxi for takeoff, about three ft above the ground, he thought that he saw a person at the corner of his drive way. He added that he stopped and the helicopter drifted to the left. Subsequently the main rotor blade impacted a tree, which resulted in substantial damage to the fuselage.

The pilot reported no preaccident mechanical malfunctions or failures with the helicopter that would have precluded normal operation.

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