Birds hit 1 in 10,000 flights

January 15, 2009 6:07:21 PM PST
Airplanes chew up birds all the time but sometimes the birds win. That may be what happened Thursday in New York when a US Airways Airbus 320 made a crash landing in water only three minutes after taking off from LaGuardia International Airport.

Flight 1549's pilot reported a "double bird strike" to air traffic controllers moments after taking off, and said he had lost thrust in both engines, said Alex Caldwell, a spokeswoman for the National Air Traffic Controllers Association.

Technically, that means the plane had struck - or been struck by - two birds, Caldwell said.

But Air Line Pilots Association safety committee chairman Rory Kay said the pilot's message could easily have meant that the jetliner had ingested birds in both engines or that it had been struck by more than just two birds.

"It's not easy to count birds," Kay noted wryly, when you're taking off or landing and typical speeds can exceed 100 miles per hour.

Federal Aviation Administration spokeswoman Diane Spitaliere said, "Bird strikes do happen from time to time."

She said there haven't been many major accidents due to birds strikes, "not in many years - not like this one. ... It's more common in general aviation - smaller aircraft."

From 1990 to 2007ere are 5,000 impacts that are reported every year."

"Aircraft are being struck every day by birds," Poormon said. "The reason you don't hear about them so much is they are designed to take these impacts. But once you get to large flocks or large birds striking at a critical moment, that's where these events hit the news."

Richard Dolbeer, a former USDA scientist who coordinated wildlife management at airports nationwide and was chairman of Bird Strike Committee USA, a multi-agency group, said that gulls are a problem nationally along the coasts.

Canada geese living in the United States have increased from about 1 million in 1990 to 3.9 million in 2008, he said.

A resurgence of birds and wildlife that end up being hazardous to aviation has followed the environmental initiatives of the 1960s and 1970s aimed at cleaning up the nation's water, protecting species, eliminating dangerous pesticides, and expanding the wildlife refuge system.

At the same time, aircraft have become faster and quieter so birds don't detect them as readily.

Often, birds are sitting quietly until they hear an airplane coming, and then trying to get away, fly up and wind up striking the plane, Kay said.

Ted Lopatkiewicz, a spokesman for the National Transportation Safety Board, which sent a team Thursday evening to New York to investigate the US Airways crash, said bird strikes are a continual concern.

"The engines are made with that in mind," Lopatkiewicz said. "They understand that that's going to happen."

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