Serious incident to the Airbus A321 registered HB-IOC and operated by Swiss on 15/04/2018 en route [Investigation led by par STSB / Switzerland]

Preliminary data based on the notification from the Swiss authorities:

Airprox

General information
Local date	15/04/2018
Responsible entity	Switzerland
State or area of occurrence	Switzerland
Location	Vers AD Genève
Human consequences	None
Aircraft consequences	None
Occurrence class	Serious incident
File number	BEA2018-0273

Flight Information
Aircraft category	Aeroplane - Large aeroplane
Operator	Switzerland - Swiss International Air Lines Ltd
Manufacturer / Model	AIRBUS - A321
Aircraft Registration	HB-IOC
State of registry	Switzerland
Last departure point	Switzerland - LSZH (ZRH) : Zurich
Planned destination	Switzerland - LSGG (GVA) : Geneve/Cointrin
Flight phase	En route
Serial number	520
Operator Type AG
Operation Type	Commercial Air Transport - Passenger - Airline

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.