Weather May Slow Removal of Crashed Wyoming Copter Investigators looking into the fatal crash of a search and rescue helicopter in Wyoming say wintry weather may hinder plans to remove the chopper from the backcountry on Friday. Michael Huhn of the National Transportation Safety Board says the probe into Wednesday's crash in northwest Wyoming is in the early stages. Teton County Search and Rescue helicopter pilot Ken Johnson is assisted after being flown out of the Togwotee Pass back country in northwestern Wyoming near Jackson on Wednesday, Feb. 15, 2012. Teton County sheriff's officials say the helicopter had reached them but was leaving to get more help when it crashed on Togwotee Pass. (AP Photo/Jackson Hole News & Guide, Bradly J. Boner) MANDATORY CREDIT Close He says it will take nine months to a year to determine an official cause of the crash. Huhn says the helicopter's pilot told him that the aircraft began to spin and descend while hovering about 100 to 200 feet above the trees. Longtime search and rescue volunteer Ray Shriver, of Jackson, was killed in the crash. The rescue team was responding to help Steven Anderson, of Morris, Minn., who died of injuries in a separate snowmobile accident. Information from: Jackson Hole News And Guide, http://www.jhnewsandguide.com