http://online.wsj.com/article/SB100...172.html?mod=WSJ_hps_MIDDLENexttoWhatsNewsTop
An AA 777 and a flight of two C-17s came within 2,000' horizontally at FL220 due to a controller error. TCAS apparently alerted the American crew which took evasive action. The story reports that controller mistakes in 2011 were 80% greater than in 2007: "Total controller errors reported by the FAA last year were about 80% higher than in 2007, though that includes mishaps on the ground and reflects more voluntary reports of lapses by controllers."
So painting with a very broad brush, if controller errors persist, are aircraft in the flight levels protected by TCAS? Does this portend a trend? Should it?
An AA 777 and a flight of two C-17s came within 2,000' horizontally at FL220 due to a controller error. TCAS apparently alerted the American crew which took evasive action. The story reports that controller mistakes in 2011 were 80% greater than in 2007: "Total controller errors reported by the FAA last year were about 80% higher than in 2007, though that includes mishaps on the ground and reflects more voluntary reports of lapses by controllers."
So painting with a very broad brush, if controller errors persist, are aircraft in the flight levels protected by TCAS? Does this portend a trend? Should it?