The helicopter which crashed killing Leicester Metropolis’s chairman and 4 others span uncontrolled after a mechanism turned disconnected, investigators have mentioned.
An Air Accident Investigation Department (AAIB) report discovered cockpit pedals had disconnected from the tail rotor.
This precipitated the AW169 plane to show uncontrollably to the fitting earlier than it crashed close to the King Energy Stadium.
The AAIB mentioned its inquiries into the 27 October crash are ongoing.
Leicester Metropolis proprietor Vichai Srivaddhanaprabha, two members of his workers Nusara Suknamai and Kaveporn Punpare, and pilots Eric Swaffer and Izabela Roza Lechowicz have been killed within the crash.
A public memorial for Mr Swaffer and Ms Lechowicz – who police mentioned was a passenger on the time of the crash – is going down at Guildford Cathedral on Thursday.
An inspection on the crash website discovered elements of a mechanism linking the pilot’s pedals to the tail rotor had grow to be disconnected and there was a “build-up of black grease” on one part.
The failure of the system led to the pitch of the tail rotor blades being modified “till they reached the bodily restrict of their journey”.
The report acknowledged: “The initiating trigger and precise sequence of the failure that resulted within the lack of tail rotor management is being investigated as a precedence.”