FILES) In this file photo taken on March 13, 2019, a United Airlines Boeing 737 Max 9 aircraft lands at San Francisco International Airport in Burlingame, California. - Boeing said December 16, 2019 it would temporarily suspend production of its globally grounded 737 MAX jets next month as the company struggles to get the beleaguered aircraft back in the air after two crashes. However the company said it currently has no plans to lay off or furlough workers as a result. (Photo by JUSTIN SULLIVAN / GETTY IMAGES NORTH AMERICA / AFP)