Sir - In the article "Collision raises doubts on ATC routeings" (Flight International, 20-26 November, P8), you say: "The last time a mid-air collision between commercial airliners occurred was 11 August, 1979."
I would point out that, in April 1984, a mid-air collision occurred between two Votec Embraer EMB-110s in Brazil and, in December 1993, another mid-air collision took place between an Air Senegal de Havilland Twin Otter and a Gambia Airways NAMC YS-11. Both involved commercial airliners.
ANTONIO BORDONI
Rome, Italy
Source: Flight International
