The search was called off for a medical transport helicopter that disappeared a week ago somewhere near Prince William Sound with four people on board. The Rescue Coordination Center and the Alaska State Troopers made the decision Monday to suspend the search for the LifeGuard Alaska helicopter. Bad weather Monday prevented rescuers from searching for the helicopter and crew. The helicopter was on its way from Cordova to Anchorage on December 3 when it went missing. The aircraft was providing ambulance service for Providence Alaska Medical Center when it is believed to have gone down in blowing snow.