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  • G115 / GLID, en-route Oxfordshire UK, 2009 (Synopsis: On 14 June 2009, a Grob 115E Tutor being operated by the UK Royal Air Force (RAF) and based at RAF Benson was conducting aerobatics in uncontrolled airspace near Drayton, Oxfordshire in day VMC when it collided with a Standard Cirrus Glider on a cross country detail from Lasham. The glider was sufficiently damaged that it could no longer be controlled and the glider pilot parachuted to safety. The Tutor entered a spin or spiral manoeuvre which it exited in a steep dive from which it did not recover prior to a ground impact which killed both occupants.)
  • HAWK, vicinity Bournemouth, UK 2011 (Synopsis: On 20 August 2011, a RAF Aerobatic Team Hawk failed to complete a formation break to land near Bournemouth and the aircraft flew into the ground, destroying the aircraft and killing the pilot. The subsequent Inquiry concluded that the pilot had become semi conscious as the result of the sudden onset of G-induced impairment characterised as A-LOC. It was found that the manoeuvre as flown was not radically different to usual and that the context for the accident was to be found in a range of organisational failures in risk management.)
  • LJ35, Aberdeen SD USA, 1999 (Synopsis: On 25 October 1999, a Learjet 35, being operated on a passenger charter flight by Sunjet Aviation, crashed in South Dakota following loss of control attributed to crew incapacitation.)
  • MD11, en-route, near Cape Ashizuri, Japan, 2007 (Synopsis: On 10 January 2007, a Transmile Air Services Boeing MD11F First Officer became suddenly incapacitated by seizure during a flight from Anchorage to Hong Kong. A diversion was made and the affected pilot hospitalised where the cause was identified as a previously non-symptomatic brain tumour.)
  • SF34, vicinity Zurich Switzerland, 2000 (Synopsis: On 10 January 2000, two minutes and 17 seconds after departure from Zurich airport, at night in instrument meteorological conditions (IMC), a Saab 340 operated by Crossair, entered into right-hand dive and crashed.)
  • SW4, en-route, North Vancouver BC Canada, 2015 (Synopsis: On 13 April 2015, a Swearingen SA226 Metro II which had recently departed on a cargo flight was climbing normally when it suddenly entered an unexplained and steep descent a few minutes after takeoff. There were no communications from the pilots. It was later found to have impacted terrain after a rate of descent exceeding 30,000 fpm had created aerodynamic forces which caused structural disintegration to begin before impact. The Investigation could not determine why but concluded that “alcohol intoxication almost certainly played a role” and noted that indications that the Captain was a chronic alcoholic had not prompted any intervention.)