The Carson City Airport Authority unanimously approved a Clearwater Flight Academy request to expand flight school activities, a change likely to kick off in March.Members voted without dissent Wednesday to approve the academy’s status as a Class 2 FBO flight school for activities that include pilot training and aircraft rentals, a move that adds commercial to individual instruction.Steve Poscic, who has Carson Aviation Adventures and Carson Aviation Services and is a member of the authority, didn’t participate in the discussion or vote because of his interest in the project.Earlier in the year, when the idea came to light publicly, there …