Michael Haro was a locations scout (also known as location manager) for Lost's production crew. As of 2011, he's working on Warner Bros' series Southland.
He was responsible for finding suitable filming locations. He is listed in one source (link) as being the location manager for LA, which would include the few scenes shot there such as the airplane interior and water tank scenes. In that same source, Jim Triplett is listed as the location manager for Hawaii.