Helicopter Aerospatiale AS350B Ecureuil Serial 2548 Register N94TH used by Temsco Helicopters. Built 1991. Aircraft history and location Aircraft History N94TH State of Alaska 1994-12Temsco Helicopters at Ketchikan, AK from Dec94 conv to as350BA conv to as350B2 ( N6591T ) Temsco Helicopters 2016-05-06w/o 06may16 on Denver Glacier east of Skagway, Alaska. 1 fatality Send Updates Use APP to upload photo @ (optional) When Now? / / Send