LOUISVILLE, Ky. (AP) – A Delta Air Lines flight has made an unscheduled landing at Louisville International Airport.  Airlines spokeswoman Ashley Black said flight 2035 from Milwaukee to Atlanta carried 149 passengers and a crew of five.  No one was hurt.  After the plane’s cockpit received an engine alert, the plane landed and taxied to the gate about 6:30 p.m. Friday.  Passengers were being transferred to another plane to continue on to Atlanta.