The European Union Aviation Safety Agency appointed a technical advisor on 14 July 2026 to support North Macedonia’s investigation into a Ryanair Boeing 737-800 window rupture that partially ejected a passenger. Initial data points to an uncontained failure of a CFM56-7B right engine fan blade, with debris striking the fuselage and shattering the pressure window, triggering rapid cabin decompression at approximately 13,000 feet. The 61-year-old Serbian passenger survived after being restrained by fellow travelers for five minutes; five others sustained injuries. EASA is coordinating with the FAA and Boeing to assess continued airworthiness actions for the 737-800 fleet. The NTSB has assigned an accredited representative, while technical advisors from the FAA, Boeing, and GE Aerospace remain on standby. Final causation of the fan blade failure remains unconfirmed.