 As Flight 159 approached Runway 27L, another flight, Delta Air Lines Flight 379 (DAL 379), a DC-9, was coming in to land on the same runway.After landing, DAL 379 received permission to turn 180° to reach an intersection they had passed, but the DC-9 was unable to complete the turn and ran off the paved runway.While most of the aircraft was stuck in the mud well away from the runway, the tail was only approximately from the edge of the runway.