In a second category A case, which was reported recently by the Air Accidents Investigation Branch, a departing BAe 146 aircraft almost collided on the ground with an arriving two-seater Piper aircraft at Birmingham airport.

BBC: Jet in near miss mid-air collision

Tendering for the ground investigation work at that site will begin early next month, with teams getting on site later this year.

BBC: Ground works to start on Inverness to Perth A9 upgrade