An investigation has been launched after part of a Delta Airlines Boeing plane came off mid-flight and landed in a person’s driveway in North Carolina. A local in the city of Raleigh phoned 911 and complained that a metal sheet was in their driveway. It was removed on Wednesday afternoon and determined to be a Boeing left wing flap from Delta Flight 3247. The flight had taken off from Hartsfield–Jackson Atlanta International Airport in Georgia just after 11 p.m. ET on Tuesday night and landed safely at Raleigh Durham International Airport in North Carolina at approximately 1:15 a.m. “After the aircraft landed safely, it was observed that a portion of the left wing’s trailing edge flap was not in place. Delta is…..