According to the same reports, Vincennes unsuccessfully tried to contact the approaching aircraft, seven times on the military emergency frequency and three times on the civilian emergency frequency, but never on air traffic control frequencies.
同一份報告稱，文森尼斯號曾嘗試聯絡正在接近的飛機但失敗，它七次使用了軍用航空緊急頻道，三次使用了民用緊急頻道，卻從未使用空中交通管制頻道。