NEW : Investigation of the plane wreckage at the crash site is complete . Two survivors upgraded from fair to serious injuries , while another is critical . One survivor tells us the plane was ` ` blown up , '' but the crash was survivable . Rogers ' funeral will be held next Wednesday in Anchorage , Alaska .
NEW : Investigation of the plane wreckage at the crash site is complete . Two survivors upgraded from fair to serious condition , while another remains critical . One witness tells CNN the plane was `` messed up , '' but the crash was survivable . Stevens ' funeral will be held next Wednesday in Anchorage , Alaska .