Greece’s Civil Aviation Authority (CAA) has ordered urgent safety checks on Bell 206 helicopters registered in the country following the fatal crash on the island of Sifnos that claimed three lives.

The directive was issued after a preliminary review of the available evidence pointed to a possible malfunction involving the helicopter’s tail rotor system, prompting authorities to take precautionary action across the Bell 206 fleet.

Checks Required Before the Next Flight

Under the emergency directive, operators of Bell 206 helicopters registered in Greece must carry out specific inspections before the aircraft’s next flight.

The checks include a visual inspection of the tail rotor and tail rotor drive system, followed by a functional test in accordance with the procedures and technical manuals provided by the manufacturer.

Operators must immediately report the results to the Civil Aviation Authority, including any signs of wear, abnormalities or suspected malfunction.

Helicopters to Be Grounded if Problems Are Found

The directive makes clear that any Bell 206 found to have a problem will remain grounded until the fault has been fully repaired and the aircraft has been confirmed as fit to fly again.

The move is precautionary and is intended to rule out the possibility of a mechanical issue affecting other helicopters of the same type.

Tail Rotor Under Scrutiny After Sifnos Crash

The emergency checks follow the August 17 crash on Sifnos, which killed all three people aboard the helicopter.

Investigators have not yet reached a final conclusion on what caused the accident. However, the preliminary assessment has identified indications of a possible problem with the performance of the tail rotor.

The tail rotor is a critical part of a conventional helicopter’s flight-control system, counteracting the torque generated by the main rotor and helping the pilot maintain directional control.

The finding remains preliminary, and the investigation into the accident is continuing.

Safety Measures Taken as Investigation Continues

The Civil Aviation Authority’s decision does not amount to a finding on the cause of the crash. Instead, it is an immediate safety measure while investigators continue examining the wreckage and other evidence.

By requiring checks before further flights, authorities are seeking to identify any potential technical issues in other Bell 206 helicopters before they return to the air.