Accident to the helicopter AS350 registered N413LP on 21/02/2017 at San Juan [investigation led by NTSB / United States]

Preliminary data based on the notification from the authorities of the United States :

Uncontrolled engine overspeed during pilot/owners flight review. Flight instructor took control and performed autorotation. Hard landing

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General information
Local date	21/02/2017
Responsible entity	United States - NTSB
State or area of occurrence	Puerto Rico
Location	AD San Juan
Human consequences	None
Aircraft consequences	Substantial
Occurrence class	Accident
File number	BEA2017-0116

Flight Information
Aircraft category	Helicopter - Small helicopter
Operator	United States
Manufacturer / Model	AEROSPATIALE - AS350
Aircraft Registration	N413LP
State of registry	United States
Last departure point	Puerto Rico (U.S.) - TJIG (SIG): San Juan/Fernando Luis Ribas Dominicci,Pr.
Planned destination	Puerto Rico (U.S.) - TJIG (SIG): San Juan/Fernando Luis Ribas Dominicci,Pr.
Flight phase	Landing
Serial number	3228
Operator Type AG	Private owner
Operation Type	Non-Commercial Operations - Flight Training/Instructional - Check

BEA is the French air safety investigation authority for civil aviation. The sole objective of the investigation is to improve air safety. It is intended neither to apportion blame nor to assess responsiblity.