美国联邦航空管理局（FAA）已下令对波音737 Max飞机进行机身检查，以排查潜在的裂纹问题[1]。此项指令将影响约471架飞机[1]，检查工作定于9月开始[1]。
裂纹位置位于机身出口门周围的支撑板处[1]。FAA警告指出，若不采取行动，这些裂纹可能导致主要结构元件无法承受极限载荷，并对飞机结构完整性造成不利影响[1]。波音公司早在2019年就首次发现并向航空公司通知了这一问题[1]。
2024年阿拉斯加航空公司的一架737 Max客机在飞行中机身板块脱落[1]，而此前该机型在2018年和2019年曾发生两起坠机事故，造成数百名乘客丧生[1]。
The U.S. Federal Aviation Administration has issued a directive requiring operators of Boeing 737 Max aircraft to inspect their fuselages for potential cracks [1]. Approximately 471 aircraft are affected by the order, with inspections set to commence in September [1].
The FAA identified cracks in structural components known as bear straps, which are support plates located around the fuselage exit doors [1]. The agency warned that failure to address these defects could result in "the inability of principal structural elements to carry ultimate loads and cause adverse effects on the structural integrity of the airplane" [1]. Boeing first discovered and notified airlines of the issue in 2019 [1].
The directive follows a 2024 incident involving an Alaska Airlines 737 Max aircraft, during which a section of the fuselage detached in mid-flight [1]. The latest inspection order reflects ongoing concerns about the 737 Max variant, which faced two fatal crashes in 2018 and 2019 that killed hundreds of passengers [1].