Helicopter's 'unstable load' led to crash that killed pilot
Peter Clunas died in the crash in the Western Isles in June last year while lifting a boat..
A pilot died after a boat that was being carried by his helicopter became unstable.
Peter Clunas, from Newburgh, Aberdeenshire, was killed when the small boat he was lifting as part of a load operation in the Western Isles flew upwards and struck the aircraft's tail rotor.
The 59-year-old, who was the sole occupant of the aircraft, was carrying out work at a fish farm at Loch Scadavay in North Uist when the accident happened.
An investigation into the incident, that took place on June 13 last year, found that the helicopter became "uncontrollable" before "descending rapidly" into the loch.
The investigation by the Air Accident Investigation Branch also found the physical characteristics of the boat and the method by which it was carried increased the probability of it becoming unstable.
The AAIB said: "The helicopter operator has taken a number of safety actions mainly relating to its operational procedures and training.
"It has also temporarily curtailed the carriage of selected types of unstable or potentially unstable loads."
After the crash the family of Mr Clunas described him as a "larger than life character".
In a statement, they said: "We would like to thank emergency services for all their efforts at the scene of the accident.
"Peter was a larger than life character who loved flying. He was a keen cyclist and swimmer. He will be missed by all who knew him."