Oil in the air conditioning unit may have been the cause for a Delta Airlines’ emergency landing in Louisville Tuesday shortly after a flight attendant reported seeing smoke in the plane. None of the crew or the 49 passengers aboard the plane that day were injured according to the Associated Press news story, "Flight Returns to KY,; smoke in cockpit." The main cause of the smoke remains unknown.
The flight was intended to leave Louisville Regional Airport bound for Cincinnati on a connector flight for Delta called Chautauqua Airlines. But as spokesman for the airline, Warren Wilkinson, said, "a flight attendant smelled smoke and noticed a small amount of smoke in the cabin when the aircraft reached about 500 feet. Then a lavatory smoke detector went off." In retrospect, Wilkinson adds, "Whenever we have a situation like this, we err on the side of safety."