The U.S. Civil Aviation Authorities have not properly assessed the reliability of the MCAS system, according to the report of the international committee of experts JATR released on October 11.
The FAA or U.S. Civil Aviation Authorities did not properly evaluate the reliability of the Boeing 737 MAX flight control system, implicated in two air disasters that killed 346 people in October 2018 and March 2019, an international committee of experts said in a 69-page report released on Friday, reports Reuters. This committee, called JATR for Joint Authorities Technical Review and gathering experts from nine countries, was commissioned last April by the FAA to review the approval of the Boeing 737 MAX MCAS anti-stall software prior to both accidents. “The JATR team found that the MCAS was not evaluated as a complete and integrated function in the certification documents that were submitted to the FAA,” says the 69-page series of findings and recommendations that Reuters was able to read. The JATR specifically criticizes the FAA for delegating “high level” certification tasks to the manufacturers and believes that this long-standing practice needs to be thoroughly reviewed in order to ensure the reliability of the procedures. “With adequate FAA engagement and oversight, the extent of delegation does not in itself compromise safety,” the report said, then adding: “However, in the Boeing 737 MAX program, the FAA had inadequate awareness of the MCAS function which, coupled with limited involvement, resulted in an inability of the FAA to provide an independent assessment of the adequacy of the Boeing-proposed certification activities associated with MCAS.”