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  • EUFI / A321, en-route, near Clacton UK, 2008 (Synopsis: On 15 October 2008, following participation in a military exercise over East Anglia (UK), a formation of 2 foreign Eurofighters entered busy controlled airspace east north east of London without clearance while in the process of trying to establish the required initial contact with military ATC, resulting in loss of prescribed separation against several civil aircraft.)
  • DH8D / TOR, en-route, North Sea UK, 2008 (Synopsis: On 13 October 2008, a DHC-8 Q400 operating in uncontrolled airspace and in receipt of civil radar advisory service was given an avoiding action turn against military traffic but then received and actioned a TCAS RA whilst inside a notified Danger Area as a result of the avoiding action turn. No close proximity to other traffic resulted.)
  • C130 / C27J, manoeuvring, near Mackall AAF NC USA, 2014 (Synopsis: On 1 December 2014, a night mid-air collision occurred in uncontrolled airspace between a Lockheed C130H Hercules and an Alenia C27J Spartan conducting VFR training flights and on almost reciprocal tracks at the same indicated altitude after neither crew had detected the proximity risk. Substantial damage was caused but both aircraft were successfully recovered and there were no injuries. The Investigation attributed the collision to a lack of visual scan by both crews, over reliance on TCAS and complacency despite the inherent risk associated with night, low-level, VFR operations using the Night Vision Goggles worn by both crews.)
  • TOR / C152, en-route, Mattersey Nottinghamshire UK, 1999 (Synopsis: On 21 January 1999, a UK Royal Air Force Tornado GR1 and a private Cessna 152 collided in mid air, at low level in day VMC with the resultant loss of both aircraft and the death of all occupants.)
  • F16 / C150, vicinity Berkeley County SC USA, 2015 (Synopsis: On 7 July 2015, a mid-air collision occurred between an F16 and a Cessna 150 in VMC at 1,600 feet QNH in Class E airspace north of Charleston SC after neither pilot detected the conflict until it was too late to take avoiding action. Both aircraft subsequently crashed and the F16 pilot ejected. The parallel civil and military investigations conducted noted the limitations of see-and-avoid and attributed the accident to the failure of the radar controller working the F16 to provide appropriate timely resolution of the impending conflict.)