 The disabled DC-9, a Delta Air Lines flight which had reported that it had cleared the runway when in fact it had not, was a contributing factor in the crash.The NTSB recommended that the FAA establish and publicize standards of safe clearance from runway edges for both aircraft and ground vehicles which also take into account the exhaust fumes of jet engines.The board also recommended a reevaluation of training manuals and aircraft procedures in regard to abort procedures.