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."[2]: 5 As the Boeing 707 passed the Delta plane, the pilots heard a loud bang which coincided with a movement of the flight controls and a yawing motion of the aircraft.[2]: 16 The NTSB determined that neither Federal Aviation Administration (FAA) regulations nor the Terminal Air Traffic Control Procedures Manual defined the phrase "clear of the runway," and found that the pilots of each plane and the air traffic controller each had their own slightly different definition of the term.[1][2]: 19–20 However, the NTSB determined that V1 was not relevant to this incident because it is only intended to advise pilots on whether they can abort after engine failure, and the first officer believed that his aircraft had been physically damaged and might not be capable of flight.[2]: 25–26 One NTSB board member, Francis H. McAdams, wrote in a separate minority report that he would have concluded that an abort was both reasonable and necessary under the circumstances, despite the fact that the aircraft had exceeded V1 and was certain to overrun the runway.[2]: 27 In his minority report, Mr. McAdams said that he would have found the probable cause of the accident to be the Delta crew's failure to adequately advise the tower of the proximity to the runway, and the tower's failure to request additional and precise information prior to clearing TWA 159 for takeoff.[2]: (Dissent p. 1–2) The family of the deceased passenger received a $105,000 settlement from Delta Air Lines in civil court.