The report found the pilot lost consciousness.
The final report into a plane crash in County Mayo in which the pilot died has been released.
58-year-old pilot Michael McCarrick, who was flying the light aircraft, was killed in the incident when his plane came down in a field at Breaffy, on the Bonninconlon side of Ballina in May last year.
An Air Accident Investigation Unit report says the pilot, who was the sole occupant of the plane, lost consciousness causing the plane to nosedive.
The aircraft took off from Lough Conn airfield at 4.38pm on May 4th, 2018, and crashed 35 minutes later following a short flight around the local area.
It was returning to the airfield when the crash took place. The aircraft was travelling at more than 225km/h, the air accident report said.
The reason Mr McCarrick became incapacitated could not be determined.
Medical records showed the pilot was taking prescription medication to reduce blood pressure and cholesterol levels, and his GP was aware of his flying activities.
“The medical records submitted do not indicate that the pilot was exhibiting any adverse effects from the medication, and he had passed all medical checks since commencement of the medication,” the air accident report said.
