On 10 August 2019, the left Rolls Royce Trent 1000 engine of a Boeing 787-8 just airborne from Rome Fiumicino suddenly malfunctioned and was shut down. A MAYDAY was declared, and the flight returned for an overweight landing during which all four left main gear tyres deflated. The underlying cause of the engine failure was found to have been intermediate-pressure turbine blade detachment attributable to previously identified serviceability issues. Wider concerns were identified in relation to underlying engine certification standards and to the hazard created by ejection of large quantities of engine debris into a densely populated area.