Greek investigators are examining a “strange noise” heard by residents moments before a honeymoon helicopter plunged into a hillside on the island of Sifnos on Monday, August 17, 2026, killing British newlyweds Alexander Cromie, 31, and Marie Ebert, 30, along with their pilot. Video footage showed the aircraft “repeatedly rotated then plummeted to the ground,” according to officials probing the disaster.
The Bell 206 private air taxi crashed at approximately 6:15 p.m. local time near Tholos, erupting in flames about 50 meters from residential properties and close to the Monastery of Panagia Vrysiani. All three occupants were declared dead when first responders arrived at the burning wreckage.
Pilot Giorgos Raikos, 55, a former air force aviator and father of three, had taken off from Markopoulo village southeast of Athens for what should have been a routine flight to the Cyclades island. The helicopter was due to land around 6:20 p.m., but control was lost in the final minutes. A fire engine and two firefighters reached the arid crash site, followed by a rescue team transported from Syros aboard the Fire Department’s RAFNAR speedboat. Thick black smoke billowed from the hillside as flames consumed the aircraft.
Investigation Centers on Mechanical Failure
Greece’s civil aviation authority has temporarily grounded all Bell 206 helicopters while investigators examine evidence pointing to a possible tail rotor malfunction. Manolis Fountoulakis, the deputy mayor of Sifnos, relayed witness accounts to authorities: “It experienced mechanical failure in the air, residents say it made a loud, strange noise, like military aircraft.”
CCTV cameras captured the helicopter spinning erratically and dropping rapidly before impact. The couple had opted for the private air taxi to avoid ferry travel that can take up to five hours from the mainland. Raikos, who had reportedly joined the charter company two months earlier, was regarded as highly experienced by those who knew him.
Victims’ Professional Lives
Bristol-born Cromie worked as vice president of private wealth solutions at Blackstone’s London office, a position he held for four years at the U.S. investment management firm. The University of Sheffield economics graduate had previously worked at BNP Paribas, the Royal Bank of Scotland, and NatWest before moving to Blackstone.
Ebert, a London native and University of Exeter graduate fluent in German, was employed as a senior specialist in market reputation at Bain & Company, joining the consulting giant in July 2025. Her career spanned asset management, private equity, and advisory roles, including time at investment firm Coller Capital. Social media posts documented trips to the French Riviera, Caribbean islands, and northern Italy’s lake district.
Employers Express Shock
Bain & Company released a statement describing Ebert as a “much-loved and deeply respected member” of its London team whose professional abilities earned widespread admiration. The consulting firm said it was providing support to her family and colleagues while extending sympathy to the families of Cromie and Raikos.
A Bain spokesperson called the firm heartbroken.
Blackstone issued its own statement through a spokesperson saying: “We are shocked by the tragic passing of three people including our colleague Alex Cromie and his wife Marie Ebert, who were celebrating their honeymoon.”
Greek authorities confirmed they are reviewing all available evidence as they work to establish the exact sequence of events. The inferno that followed the crash left emergency responders with no opportunity to save lives. An alarm triggered by the impact echoed across Sifnos, drawing firefighters and rescue teams to the scene. Families of the three victims have been informed, and Greek officials extended condolences to those mourning the newlyweds and the experienced pilot.

