On 20 February 2021, a Boeing 777-200 climbing through 12,500 feet experienced a sudden right engine failure and fire shortly after thrust had been increased before entering airspace where moderate turbulence was expected. Despite actioning the corresponding drills, the fire did not go out until shortly before landing back at Denver. Engine debris fell to the ground over a wide area, fortuitously with only damage and no injuries. The failure was found to have been initiated by the fatigue failure of a single fan blade after required routine inspections had failed to find early-stage evidence of such a risk.