Accident to the plane Robin DR400 registered HB-KLB and to the glider Schleicher ASW27 registered HB-3412 on 12/06/2021 at Bivio

Preliminary data based on the notification from the Swiss authorities:

Probable mid-air collision.

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General information
Local date	12/06/2021
Responsible entity	Switzerland - AAIB
State or area of occurrence	Switzerland
Location	Bivio, Surses
Human consequences	Fatal
Number of death	5
Aircraft consequences	Destroyed
Occurrence class	Accident
File number	BEA2021-0293

Flight Information
Aircraft category	Aeroplane - Small aeroplane
Operator	Switzerland (Groupe de vol à Moteur Neuchâtel)
Manufacturer / Model	ROBIN - DR400
Aircraft Registration	HB-KLB
State of registry	Switzerland
Last departure point	Switzerland - LSZS (SMV): Samedan
Planned destination	Switzerland - LSZL : Locarno
Flight phase	En route
Serial number	2686
Operator Type AG	Flying club/school
Operation Type	Non-Commercial Operations - Pleasure - Cross Country

Second aircraft involved
Aircraft category	Fixed Wing - Sailplane (Glider) - Non-Powered Sailplane (Glider)
Operator	Switzerland (Segelfluggruppe Friedberg)
Manufacturer / Model	SCHLEICHER - ASW24
Aircraft Registration	HB-3412
State of registry	Switzerland
Last departure point	Switzerland LSPA: Amlikon
Planned destination	Switzerland LSPA: Amlikon
Flight phase	En route
Serial number	29504
Operator Type AG	Flying club/school
Operation Type	Non-Commercial Operations - Pleasure - Local

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.