Aviation-safety officials say a close call last year highlights the need for faster reporting of dangerous incidents before evidence is lost.
The National Transportation Safety Board issued a final report Thursday on the July 2017 close call 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 taped 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 four other planes were idling before they aborted their landing.