Czech billionaire Petr Kellner killed in helicopter crash on Alaska ski trip – ABC News

US safety inspectors are investigating what caused the mountainside helicopter crash in Alaska that killed billionaire Petr Kellner, the wealthiest man in the Czech Republic and founder of investment group PPF, during a weekend ski outing.

• One person survived the crash, and remains in serious but stable condition at an Anchorage-area hospital
• Authorities mounted a search for the helicopter Saturday night after the aircraft was reported overdue for its return
• Inspectors will be examining a wide variety…

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