Investigators looking into close call on runway in S.F.
Air Canada flight nearly crashed into two other jetliners
Investigators looking into the frighteningly close call involving an airliner that nearly hit planes on the ground at San Francisco International Airport will try to determine why the pilots made such a rookie mistake and nearly landed on a busy taxiway instead of the runway.
The Air Canada plane with 140 people aboard came within 100 feet of crashing onto the first two of four passenger-filled planes readying for takeoff.
Runways are edged with rows of white lights, and another system of lights on the side of the runway helps guide pilots on their descent. By contrast, taxiways have blue lights on the edges and green lights down the center.
“The lighting is different for good reason,” said Steven Wallace, a former director of accident investigations at the Federal Aviation Administration. “Some of these visual mistakes are hard to believe, but a crew gets fixated with thinking ‘That’s the runway,’ and it’s not.”
Then there is the radio transmission in which one of the Air Canada pilots sounded puzzled about seeing what appeared to be the lights of other planes on the runway. Safety experts said that should have prompted the crew to abort their approach long before they did.
When investigators interview the pilots, they will focus on understanding how mistakes occurred “and why they did not realize the sequence of errors,” said John Cox, a safety consultant and former airline pilot. Investigators will look at the pilots’ use of automated-flying systems, their manual flying skills and how they interacted with each other as uncertainty set in, he said.
Investigators from the U.S. National Transportation Safety Board may arrive this weekend and interview the pilots and air traffic controllers, an agency spokesman said Friday. They will examine information from the flight data recorder, which will tell them the plane’s exact location and how it was being flown. They also will listen to the cockpit voice recorder, which may indicate whether the pilots were focused on their job or distracted.
Canada’s transportation safety board said the Air Canada jet skimmed just 100 feet over the tops of two planes waiting for takeoff. After an air traffic controller ordered them to abandon their landing, the pilots pulled up their Airbus A320 just in time, circled and landed correctly on the runway. No one was injured.
The Canadian agency’s summary was the first official account of just how dangerous the situation was.
An Air Canada spokeswoman said she could not comment because the incident is under investigation. She declined to describe the amount of experience of the pilots.
Taxiway landings are rare, and most of them involve small planes.