Boeing has urged airlines to inspect new 737 MAX planes because a bolt in the rudder control system may be loose. According to RBC, the corresponding message was published by the American Federal Aviation Administration (FAA).
The department emphasized that it will carefully monitor targeted inspections. At the moment, two cases of malfunction have been identified. In the first one, there was no nut on the bolt, which one of the operators discovered during routine maintenance. In the second case, the nut was not tightened correctly, but Boeing itself installed this on one of the aircraft that had not yet been transferred for use.
The new generation of Boeing 737 airliners – MAX – was launched into service in 2017. In October 2018, the first plane crash involving this airliner occurred: an Indonesian Lion Air plane crashed into the Sea of Japan, killing 189 people. In March 2019, a second disaster occurred – an Ethiopian Airlines plane crashed, killing 157 people.
In both cases, problems were reported with the maneuvering control improvement system. After the second crash, it was decided to suspend flights on the 737 MAX. Boeing has begun working to fix the software, and investigations have begun into the MCAS malfunction and why the FAA did not find the flaw. At the end of 2019 – beginning of 2020, the company suspended production of the 737 MAX. At the end of 2020, the FAA again allowed the flights of these airliners, as Boeing corrected the shortcomings.
Source: Rosbalt
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