Boeing has released more vision of its 777X's stunning flying display at this week's Dubai Air Show. https://twitter.com/i/status/1460774859399647233 The 777X was the show stopper with its breathtaking maneuvers that left the huge crowd in awe. But last week Emirates President Tim Clark was critical of Boeing and the delays in the certification of the 777X. Mr. Clark will be hoping that not only will the 777X wow the crowd at the Dubai Air Show but Boeing management will wow Emirates – the 777Xs biggest customer – with concrete plans for its certification. READ: Aussie whizz Hapgood to lead digital production of Boeing’s next aircraft. READ: Sensational new finding in MH370 search  That certification process has been upended after the tragic 737 MAX crashes. In June the US safety regulator, the FAA, told Boeing that the 777X will not be certified till late 2023. In a letter, revealed by the Seattle Times, the FAA rejected the company’s request to issue a Type Inspection Authorization Readiness saying “the aircraft is not yet ready for TIA.” This followed the FAA telling Boeing to address various problems, including flight control software that apparently triggered the plane to pitch abruptly without pilots’ input during a December 2020 test flight. The late 2023 certification timeline is in line with Boeing’s advice to the market given by Chief Executive Dave Calhoun. A Boeing spokeswoman told CNBC at the time that the company “remains fully focused on safety as our highest priority throughout 777X development. As we subject the airplane to a comprehensive test program to demonstrate its safety and reliability, we are working through a rigorous development process to ensure we meet all applicable requirements.” Boeing installed a major software upgrade on the four test aircraft to address a series of problems including the software fix for the un-commanded pitch event that occurred on December 8, 2020.