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Authorities are scrutinizing the final minutes, and particularly the critical last seconds, of the helicopter flight that crashed on the island of Sifnos, killing all three people on board.

The accident occurred in the Tholos area, near the island’s helipad. Just a few yards before its scheduled landing, the helicopter appears to have lost control. The crash triggered a powerful explosion, and the aircraft burst into flames.

The victims include the 55-year-old pilot, who was of Greek origin, and a newlywed British couple who had chartered the helicopter for their honeymoon on Sifnos.

Investigators are placing particular emphasis on video footage obtained by the authorities. The footage appears to show the helicopter moving erratically, spinning and losing altitude before eventually hitting the ground very close to the landing site.

Authorities are working to reconstruct the flight path in detail, focusing on the final seconds before the crash.

The flight had departed from the wider Markopoulo area in eastern Attica. According to information available so far, the pilot had notified the relevant authorities that he was preparing to land, but radio contact then went silent for several seconds.

Residents living near the helipad reported hearing an unusual noise coming from the helicopter. Investigators are examining their accounts, which could shed light on the condition of the aircraft shortly before the crash.

The Video Footage

Possible Mechanical Failure Under Investigation

One of the key questions authorities are seeking to answer is whether the crash was caused by a mechanical failure or human factors.

The possibility of a mechanical failure remains under consideration, with a definitive answer expected from the investigation by the authority responsible for examining aviation accidents. All available evidence will be reviewed before a report is prepared and forwarded to prosecutors.

Weather conditions on Sifnos at the time of the crash are also considered an important factor. According to available information, at around 6:17 p.m., when the Fire Service was notified, there were no strong winds in the area and weather conditions were good.

Expert outlines possible causes

An aviation accident expert and former Army Aviation pilot said a mechanical failure in the helicopter’s tail section or a sudden medical problem affecting the pilot are among the possible causes being examined.

A mechanical failure in the helicopter’s tail section or a sudden medical problem affecting the pilot are among the possible explanations for the crash of a private helicopter on the Greek island of Sifnos that killed three people.

The initial assessment was provided by aviation accident expert and former Army Aviation pilot Pantelis Fragoulis during an appearance on Greek public broadcaster ERT.

Commenting on video showing the helicopter’s movements shortly before the crash, Fragoulis focused on its sudden rotation to the right as it approached the helipad.

He said the maneuver could be linked to a disruption in the operation of the helicopter’s tail section, raising the possibility of a mechanical failure involving the system connected to the tail rotor.

According to Fragoulis, investigators will need to determine whether any malfunction, observation by a previous pilot or maintenance work involving the tail section had been recorded in the days before the crash.

Possible medical emergency

The helicopter wreckage is expected to provide crucial information to investigators as they examine whether a component failed.

At the same time, Fragoulis raised the possibility that the pilot may have suffered a sudden medical emergency.

A forensic examination could determine whether the pilot experienced a serious medical episode that may have affected his ability to control the helicopter.

Fragoulis also emphasized the pilot’s extensive experience, noting that he had served in Army Aviation and was highly familiar with helicopter operations.

While such experience would allow a pilot to respond to a wide range of problems, Fragoulis said an extremely serious mechanical failure could make it very difficult, even for an experienced pilot, to regain control of the aircraft.

Pilot Had Extensive Experience

The 55-year-old pilot has been described by people in his professional circle as highly experienced, with thousands of flight hours.

He had previously served in the Greek Armed Forces and continued working as a professional helicopter pilot after retiring from military service.

Authorities are also seeking information about his final communication with the control center. Investigators are particularly interested in determining whether he reported any problem or malfunction during that exchange.

Emergency Response at the Crash Site

The helicopter crashed very close to homes, raising concerns that the accident could have resulted in additional casualties.

The Fire Service responded immediately, sending two firefighters and one vehicle to the scene to extinguish the blaze. Police also established a security perimeter to allow rescue crews to carry out their work.

A medical examiner also arrived at the scene. Initially, there was no clear information about how many people had been aboard the helicopter. Authorities later confirmed that there were three people on board and that all three had died.

The investigation remains ongoing as authorities seek to determine the cause of the tragedy and establish exactly what happened during the critical final seconds before the crash.