Boeing is ordering dozens of its 777 airliners to be grounded after an engine failure left a rotor in flames over Denver this weekend. Debris from the Honolulu-bound plane was left scattered across Denver as the flight was forced to turn around and make an emergency landing. The grounding order comes on the back of record losses for Boeing in twenty twenty, which were fuelled by the COVID-19 pandemic and the grounding of its 737 airliner.