Helicopter crash that killed Leicester's Thai owner caused by disconnected mechanism: Probe

Helicopter crash that killed Leicester's Thai owner caused by disconnected mechanism: Probe

The doomed Leicester City helicopter crashed into a fireball when a pedal controlling the tail rotor became disconnected, a report has revealed.

The Air Accidents Investigation (AAIB) said a pin had become disconnected in the control mechanism of the tail rotor which made the helicopter "uncontrollable".

"Disconnection of the control shaft from the lever prevented the feedback mechanism for the tail rotor actuator from operating and the tail rotor actuator from responding to yaw control inputs".

Vichai Srivaddhanaprabha, the Thai retail entrepreneur who owned Leicester, was among those killed when his aircraft crashed and burst in flames outside the King Power Stadium following a Premier League game on October 27.

'The tail rotor system was first inspected at the scene, it was identified that the mechanism of the input lever wasn't connected to the control shaft, ' the report continued.

This caused the pitch of the tail rotor blades to change "until they reached the physical limit of their travel".

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A page from the crash report issued Thursday illustrates the focus of the investigation.

"The observed condition of the duplex bearing and the increased torque load on the castellated nut that remained on the spider end of the shaft is consistent with rotation of the tail rotor actuator control shaft".

The helicopter began to spin uncontrollably to the right as a result.

A report from the Air Accidents Investigation Branch revealed the pin had become disconnected, causing huge instability in the helicopter and causing the pilot to lose control of it. Mr Srivaddhanaprabha, employees Nursara Suknamai and Kaveporn Punpare, pilot Eric Swaffer and his partner, Izabela Roza Lechowicz - who was also a professional pilot - were all killed when the aircraft crashed close to the football club's King Power Stadium on October 27.

'The pin, the spacers and one of the locating bearings were all missing from the lever, the locking nut and pin support were also loose. There was a build-up of debris, black dust and metallic particles - no grease in its original form was present, which in a hydraulic system is crucial.

According to UK Sun report, Srivaddhanaprabhab's company's King Power has reportedly confirmed he was on board on the helicopter, when the crash occurred.

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