A Swiss Air Force Super Puma helicopter went down in the central Swiss Alps on Sept. 28 after dropping French inspectors from the Organization for Security and Co-operation (OSCE).
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By Ronnie Macdonald from Chelmsford and Largs, United Kingdom (Super Puma Swiss Air Force) [CC BY 2.0], via Wikimedia Commons
Two pilots were killed and a third aircrew member was injured.
The crash prompted chief of Air Force, Aldo Schellenberg, to ground the Super Puma fleet.