(Chinatopix via AP) In this Dec. 15, 2018, photo, invited guests look at the Boeing 737 Max 8 airplane parked on tarmac after being delivered to Air China at Boeing Zhoushan 737 Completion and Delivery Center in Zhoushan, east China's Zhejiang Province. China's civilian aviation authority has ordered all Chinese airlines to ground their Boeing 737 Max 8 planes on Monday, March 11, 2019 after one of the aircraft crashed in Ethiopia. The authority said the one-day action was made out of safety concerns because the crash was similar to one in Indonesia last year.