A fan blade in the right engine of a Ryanair Boeing 737-800 broke loose shortly after takeoff from Thessaloniki (northern Greece) on 10 July, sending fragments that shattered a cabin window and damaged the fuselage in multiple places, U.S. investigators said Thursday. The force of the rapid cabin depressurisation pulled a 61-year-old passenger's head through the broken window before fellow travellers dragged him back inside; he suffered neck and shoulder injuries and friction burns. The U.S. National Transportation Safety Board (NTSB), which took over the investigation under international aviation rules, noted that bird remains were found in the engine, though the precise cause of the blade failure is still undetermined — and that FAA-mandated engine-casing reinforcements ordered after a fatal 2018 Southwest Airlines incident had not yet been completed on the aircraft, with the compliance deadline set for July 2028.