视频丨美一客机与直升机险些相撞 相关调查正在进行

Core Points - The National Transportation Safety Board (NTSB) is investigating a near-collision incident involving a Southwest Airlines aircraft and a medical helicopter near Cleveland Hopkins International Airport on October 29 [2] - The Southwest Airlines Boeing 737 and the medical helicopter were at the same altitude of 2,075 feet (approximately 632.46 meters) and were as close as 0.56 miles (approximately 901.23 meters) to each other [2] - The incident was averted when the aircraft's pilot received a "RA alert," which is an emergency avoidance instruction from the aircraft's collision avoidance system [2]