Shortly after takeoff from San Francisco International Airport, a United Airlines jumbo jet came so close to colliding with a small Cessna plane that it set off the United plane's collision avoidance alarm system.
According to audio recordings released from Saturday's incident, United Flight 889, bound for China with 268 passengers and crew members on board, acknowledged a routine clearance for takeoff.
"Cleared for takeoff … United triple 889," the pilot said.
But as the jumbo jet climbed...
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