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[text/observer network xiong chaoran] according to a reuters report on september 30, local time, the u.s. national transportation safety board (ntsb, an independent agency of the u.s. federal government) stated that day that more than 40 foreign airlines are using boeing 737 aircraft. the rudder control system may have potential safety risks.

previously, utsb issued an "emergency safety advisory" on september 26, local time, pointing out that some boeing 737 aircraft had a stuck rudder control system. on february 6 this year, a united airlines boeing 737 max 8 aircraft suffered an accident while landing at newark airport in new jersey. the rudder pedal became "stuck" while the aircraft was taxiing on the runway.

on september 30, the ntsb also disclosed that it learned that two foreign operators suffered similar accidents involving rudder controllers in 2019. "we are concerned that other airlines may not be aware that their 737s there are these (problematic) actuators on the aircraft."

the ntsb said on september 26 that u.s. airlines no longer fly any boeing 737 aircraft equipped with the affected actuators, which are installed on some 737 max and previous-generation 737s including optional landing systems. on the ng plane.

the ntsb now further states that 271 affected parts may be installed on active aircraft operated by at least 40 foreign airlines, 16 of which may still be installed on u.s.-registered aircraft, and as many as 75 may have been used in aftermarket applications. market installation. the ntsb and faa have not determined which airlines may have used the parts.

homendy, who spoke with whitaker last week about the issue, said she was concerned that "the faa was not taking this more seriously before we issued the 'emergency safety advisory' report." the faa said it is taking the ntsb's recommendations seriously and plans to conduct additional simulator testing in october.

an faa corrective action review committee met on sept. 27 and said it was moving quickly to convene a conference call with affected aviation executives to ensure they have the information they need, including any recommendations that should be acted upon. action.

united said last week that the problematic rudder control parts were only installed on nine boeing 737s originally built for other airlines and that the parts had all been removed earlier this year.

the ntsb criticized boeing on september 30 for not informing united airlines that the 737 aircraft it received were equipped with actuators "mechanically connected to the rudder control system" and expressed concern that other airlines may not be aware of the existence of these actuators. worry.

"if a roll guidance actuator fails during low-altitude flight or landing, the flight crew may not know what will happen." the ntsb emphasized that such a failure is "unacceptable."

on september 30, boeing's stock price fell 2.7%, and the company declined to comment on related news. boeing said last week it notified operators of affected 737 aircraft in august of a "possible problem with the rudder roll guidance actuator."

reuters pointed out that these problems are the latest setbacks for boeing. on january 5 this year, the door (door plug, or built-in emergency door) of an alaska airlines 737 max 9 passenger plane fell off during a high-altitude flight. this accident once again plunged the already scandal-ridden boeing company into trouble. in the midst of a huge crisis, they were once again "returned to their original shape" and faced a series of security issues.

according to a report by cnn on august 6, local time, during a two-day investigation hearing held by the ntsb on the accident, investigators asked boeing staff some questions related to safety and serious consequences. the staff involved in the accident aircraft revealed that due to the heavy and urgent workload, they could not avoid making mistakes.

a boeing employee said that once there is a problem during the aircraft assembly process, a lot of work needs to be redone, and boeing aircraft are sent for repair every day when problems are discovered. "replacing door plugs is as frequent as changing underwear." "flights come every day and there are problems every day," another employee added.

cnn said that because the fbi has informed passengers and crew that they may be considered victims of crime, criminal charges may be filed against boeing for its mistakes that led to the incident on january 5 this year.

in fact, even before this, boeing faced the possibility of criminal charges because the company concealed some problems with the faa during the initial certification process of its 737 max aircraft, resulting in design flaws in the aircraft that were believed to have caused the crash. the cause of two fatal air crashes in indonesia and ethiopia in 2018 and 2019, killing 346 people.

in january 2021, boeing and the u.s. department of justice agreed to a settlement that postponed for three years criminal prosecution of boeing employees who deceived the faa during the certification process. the three-year probation period was supposed to end a few days later on january 5 this year, but after the alaska airlines door falling incident, the u.s. department of justice reopened the investigation.

boeing's sales plummeted 70% in the first six months of this year. in june this year, boeing sold only three passenger planes, one of which was sold to alaska airlines to replace the plane that crashed on january 5 this year. now, boeing, which is trying to increase production and improve the company's reputation, has been hit again.

on september 12, local time, boeing workers in the seattle and portland areas of the united states voted 94.6% against the proposal proposed by boeing and its largest union, the international federation of machinists and aviation workers (iam), on september 8. a tentative agreement. 96% of workers voted in favor of a strike, far exceeding the 2/3 vote required for a strike. more than 30,000 workers went on strike in the early hours of september 13 after they voted overwhelmingly to reject boeing's interim deal.

the new york times pointed out that this was boeing's first worker strike since 2008, and it was also a costly strike. the strike could further disrupt the company's already fragile supply chain as it seeks ways to increase aircraft production following a safety incident in january.

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