China News Service, June 28, according to the "Central News Agency" reported that on the 29th local time, members of the US Federal Aviation Administration (FAA) testing team will begin the certification and testing of Boeing 737 MAX aircraft, which is expected to continue at least 3 day.

On March 27, local time, Southwest Airlines’ Boeing 737 MAX series aircraft were parked at Victorville Airport, known as the "aircraft cemetery".

  According to Reuters, citing people familiar with the matter, the detection team will go to Boeing Airport near Seattle to receive a few hours of pre-flight briefing, and then board a 737 MAX aircraft equipped with special detection equipment.

  A person familiar with the matter said that the team will systematically execute pre-arranged air conditions, such as large-angle tilt turns, etc., and perform more drastic maneuvering operations on routes mainly located in Washington State.

  The flight plan may also include continuous takeoffs after landing at the airport in Moses Lake, eastern Washington.

  A person familiar with the situation said that the pilot will deliberately touch the modified "maneuvering characteristic enhancement system" (MCAS) and may perform what is called a complete aerodynamic stall. This system has had problems in two previous major air crashes.

On March 12, 2019, the rescue work of the Ethiopian Airlines crash flight ET302 was basically completed. The picture shows a team sent by Boeing to investigate at the scene. China News Agency reporter Wang Xishe

  In response, Boeing and the Federal Aviation Administration declined to comment on the matter.

  According to reports, this flight test is of great importance to Boeing, which has fallen into the worst corporate crisis in history. Earlier, a 737MAX airliner of Indonesian Lion Air and Ethiopian Airlines each crashed in October 2018 and March 2019 respectively, killing a total of 346 people. The reasons are all related to the anti-stall "maneuverability enhancement system". The aircraft was subsequently grounded globally, and production was suspended in January this year, and production resumed in May.