Original title: Indonesia said the 737max defect made lion aviation difficult. The final report may be released on the 25th. Source: China News Network
According to the 'Central News Agency', in a briefing on the final investigation report on the 23rd, Indonesia's National Transportation Safety Commission (NTSC) told the families of the dead in lion air that mechanical and design problems led to the accident. Indonesian media said the report would be released as soon as the 25th.
In October 2018, shortly after taking off from Jakarta, a lion Boeing 737 Max crashed in the Java Sea, killing all 189 passengers and crew. A few months later, the Boeing 737 max of Ethiopian Airlines also crashed, killing 157 people on board and banning this model from flying around the world.
It is reported that the preliminary investigation of the two accidents showed that the automatic flight operation system 'control characteristic gain system' (MCAS) made the captain unable to control the aircraft. The preliminary investigation into the Indonesian air crash also pointed to the safety culture of low-cost air lion airlines.
It is reported that the slide of the report issued by Indonesia's National Transportation Safety Committee shows that the reasons for the crash of Boeing's new model include the wrong assumptions about the operation of the anti stall device MCAs system and the captain's response. According to the slide, the reliance on a single angle of attack sensor makes the MCAs system more vulnerable, while the sensors of the crashed aircraft were not calibrated during previous maintenance.
In addition, the lack of instructions on how the system operates in the event of a crash, including the start of the 'automatic shock rod' that warns the captain of stall, is also the cause of the accident. The briefing also mentioned that the crew also faced a number of interference and 'deficiencies' in aircraft manual control and communication.
A Boeing spokesman declined to comment on the briefing, saying 'it is too early for us to respond because the authorities have not officially released the report'. Indonesian media said that the final investigation report will be released as soon as the 25th.
IKA, who lost her husband in the air crash, said before going to the meeting: 'we want to hear what (the regulatory authorities) want to say to the report, hoping that this will make the case clearer.'
Boeing replaced McAllister, President and CEO of the commercial aircraft department, on the 22nd, which is the most significant senior personnel change in seven months since Boeing was deeply in crisis due to the grounding of 737 Max aircraft. The two crashes have cost the American aviation giant billions of dollars, and triggered calls for the reform of corporate culture and the resolution of the issue of transparency.
A plaintiff's lawyer previously said that Boeing is currently settling with the families of 11 accident victims. The lawsuit ridden Boeing also said earlier in 2019 that it would provide us $100 million to support the families of the victims of the 737 max air crash.
It is reported that the international regulatory agency issued a report that the Federal Aviation Administration (FAA) of the United States lacks manpower and professional knowledge, so it is unable to conduct a comprehensive assessment of MCAs when certifying aircraft.