Accident to the fixed-wing microlight ZT 610 identified 77AUM on 06/09/24 at Frestoy-Vaux

The pilot in training and the instructor were carrying out a check flight with a view to the pilot in training obtaining the fixed wing rating. While the microlight was flying in level flight, the canopy very probably opened, degrading the controllability and aerodynamic behaviour of the aircraft. The microlight’s pitch attitude and flight path were probably abruptly impacted, leading to a high pitch down attitude associated with a significant decrease in the load factor. The instructor and the pilot in training were ejected from the microlight before it collided with the ground.

The investigation was not able to determine what caused the canopy to open in flight.

The seatbelt buckles were found fastened and locked, and no seatbelt marks were found on the occupants' bodies. Based on the statements gathered, it is unlikely that the two occupants were not wearing their seatbelts. It is probable that the occupants were ejected while wearing
their seatbelts.