尽管波音公司进行了压力测试，但通常不会对 Max 9 进行改装。 Although Boeing tests pressure, it typically does not modify the Max 9.

美国联邦航空管理局 (FAA) 决定延长波音 737 MAX 9 飞机的停飞期限，理由是需要进行新的安全检查。 The US Federal Aviation Administration (FAA) has decided to extend the grounding of Boeing 737 MAX 9 airplanes, citing the need for new safety checks. 这一决定是在最近发生的一起飞行过程中机舱面板过早脱落的事件之后做出的。 This decision comes after a recent incident involving the premature detachment of a cabin panel during a flight. 美国联邦航空局还表示，将加强对波音公司的监管，以确保该行业的高安全标准。 The FAA has also stated that it will be tightening its oversight of Boeing as it aims to ensure a high safety standard in the industry.