The AAIB additionally confirmed that pilot David Ibbotson, 59, was unlicensed to fly that specific plane and at night time, when the tragedy occurred.
He was additionally working an unlicensed business flight and being paid an unspecified quantity for the flight, which was unlawful.
Investigators stated it was possible that he was affected by carbon monoxide.
An interim report additionally discovered that Sala had suffered carbon monoxide poisoning earlier than the airplane crashed and was possible unconscious when it hit the water.
Geraint Herbert, Senior Inspector of Air Accidents at AAIB, stated the airplane was flying erratically in its final moments because the pilot tried to keep away from dangerous climate.
“During this accident the pilot misplaced management of the plane throughout a flip, which we consider he was making to keep away from poor climate,” Herbert advised AFP.
“After that the plane broke up in flight as a result of it was manoeuvring at a pace effectively in extra of its most manoeuvring pace.”
The airplane was travelling at an estimated 270 miles per hour (435 kilometres per hour) when it hit the water, stated the AAIB.
Investigators stated the impression was “not survivable”.
Although there was no single trigger for the accident, stated investigators, the tragedy has thrown a highlight on lax regulation.
The 115-page report highlighted issues over the rising use of unlicensed business flights, such because the one used to move Sala, by the “sporting world”.
The AAIB additionally really helpful that carbon monoxide screens be fitted as normal on all planes.
The airplane, inbuilt 1984, didn’t have such a monitor and it’s believed that the poisoning was attributable to a defective cabin heater.
Herbert stated two foremost elements contributed to the crash.
“One was that the pilot was not skilled and certified to fly the flight, however the different one in every of course was that he was in all probability affected by carbon monoxide poisoning,” he stated.
“We have made a suggestion to the regulators to require the carriage of carbon monoxide detectors on plane equivalent to this.”
Illegal constitution flights
Sala had signed for Cardiff in a 17-million-euro deal accomplished only a few days earlier than the crash.
The Argentinian was returning to Cardiff to participate in his first coaching session after saying goodbye to his teammates in northwest France.
In an announcement, Cardiff City stated it “welcomed” the report which “raises numerous new questions which we hope will probably be addressed throughout the inquest recommencing subsequent week”.
That inquest is because of begin subsequent Monday in Bournemouth, southern England.
The European Business Aviation Association stated the tragedy and report had highlighted “the dangers of unlawful constitution flights”.
Reports within the British press have stated former soccer agent Willie McKay stated he paid for the deadly flight, however didn’t select the pilot or the airplane.
Sala’s physique was discovered a number of days after the crash, hooked up to wreckage from the airplane, whereas Ibbotson’s physique was by no means discovered.