AN AIR CANADA flight almost caused the “worst aviation crash in history” last year after being just feet away from hitting four other planes on the runway, according to the latest report. Safety officials say a near collision of airliners in San Francisco last year was a few feet from becoming the worst crash in aviation history and underscores the need for faster reporting of dangerous incidents before evidence is lost. The National Transportation Safety Board issued a final report Thursday on the incident in which an Air Canada jet nearly crashed into planes lined up on the ground at San Francisco International Airport. The pilots were slow to report the incident to superiors. By the time they did, the plane had made another flight and the cockpit voice recording of the close call was recorded over. The NTSB says the recording could have helped investigators understand why the Air Canada pilots missed the runway and were about to land on a taxiway where ...