Serious incident to the Guimbal Cabri G2 registered HB-ZDQ on 01/07/2020 at Bulle

Preliminary data based on the notification from the Swiss authorities:

Sudden destruction of the windshield at high speed without collision of object.

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Rupture du pare-brise en vol, en instruction

General information
Local date	01/07/2020
Responsible entity	Switzerland - AAIB
Scope of Investigation	Full (Annex 13) type investigation
State or area of occurrence	Europe and North Atlantic - Switzerland
Location	Bulle
Human consequences	Minor
Number of minor injuries	2
Aircraft consequences	Minor
Occurrence class	Serious incident
File number	BEA2020-0542

Flight Information
Aircraft category	Rotorcraft - Helicopter - Small/light Helicopter - Small Helicopter
Operator	Switzerland - Swiss Helicopter School Association
Manufacturer / Model	GUIMBAL - CABRI
Aircraft Registration	HB-ZDQ
State of registry	Switzerland
Last departure point	Switzerland - LSGT : Gruyeres
Planned destination	Switzerland - LSGT : Gruyeres
Flight phase	Unknown
Serial number	1051
Operator Type AG	Flying club/school
Operation Type	Non-Commercial Operations - Flight Training/Instructional - Dual

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.