Aeronautical 737MAX (Image Source: New York Times)
Overseas Network May 24, the Boeing 737MAX model is still in a global grounding state, the causes of the two air crashes are still under investigation. While there were many doubts about Boeing, representatives of the Federal Aviation Administration (FAA) revealed on Wednesday that they expected Boeing 737 MAX to fly back in the United States as early as the end of June, but soon Daniel Elwell, acting director of the FAA, broke the rumor.
Representatives of FAA and Boeing asked the International Civil Aviation Organization (ICAO) for 737MAXs return time in Canada and discussed the conditions for the return flight, Reuters reported. Two FAA sources said that after discussion, 737MAX was expected to return to the United States as early as the end of June, but it was not clear when other countries would return. It is understood that Canada and European countries said on the 22nd that they would decide when to fly back according to their own standards.
Shortly after the source spoke, Acting Director of FAA Elwell responded that the eight-hour meeting with more than 30 international aviation regulators was positive and constructive. However, before FAA completes its safety analysis, 737MAX will not be approved for re-flight. There is no definite timetable and no decision on whether to train pilots.
On the 22nd, FAA announced that it would publish safety analysis results to governments to provide decision-making basis for the re-flight of 737MAX aircraft. Elwell said at the time that the FAA was still waiting for a formal upgrade of Boeings software.
Boeing has not responded to the resumption, but Im afraid 737MAX will not be successful. Three U.S. airlines operating 737MAX (American Airlines, United Airlines and Southwest Airlines) told Reuters that it would take 100 to 150 hours for each aircraft to be ready before it could be put back into use if the relevant agencies approved the return of 737MAX.
But 100 to 150 hours of preparation time has exceeded the normal training time of pilots. Regulators are still discussing whether pilots should conduct simulator test crash scenarios during this period, which means airlines will spend more time and money if needed.
Boeing admitted for the first time that the simulator software used to train pilots for 737MAX aircraft had flaws and could not simulate the difficult situation of stall prevention system failure. In addition, the aircrafts automatic stabilization system MCAS (Maneuverability Enhancement System) is suspected to be the main cause of the two crashes.
At present, Boeing has not formally submitted a repair plan to FAA. But Boeing has previously said that 737MAX does not require actual simulator training. Boeing will introduce an audio course to explain the operation of the MCAS system, and pilots can complete it at home. In addition, Boeing will provide additional training.
As the first country to stop flying 737MAX, the Ministry of Foreign Affairs of China stated earlier on the return flight schedule that after confirming that it had effective measures to ensure flight safety, it would notify transport Airlines separately to resume the commercial operation of Boeing 737MAX. It is difficult to predict a specific timetable, but to ensure that there is no security risk (resumption of operation), which is also a responsible attitude for all passengers.
Source: Overseas Network Responsible Editor: Yang Yi_NBJ10647