The Federal Aviation Administration has ordered inspections of more jet engines like the one that blew apart at 32,000 feet in a deadly accident aboard a Southwest Airlines plane.
The agency says its order affects 352 engines in the U.S. and another 681 worldwide on "new generation" Boeing 737 jets. Each aircraft has two engines.
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The requirement from the agency comes after the engine maker, CFM International, issued a service bulletin recommending that more engines be inspected. At issue are the engine fan blades on Boeing 737-600, 700, 800 and 900 jets.
The National Transportation Safety Board believes one of the blades snapped on the Southwest flight Tuesday, hurling debris that broke a window and led to the death of a passenger who was sucked partway out of the plane. The jet, which was headed from New York to Dallas, made an emergency landing in Philadelphia.
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The CFM 56-7B engines are on about 1,800 "new generation" 737s in service in the U.S. and about 6,400 worldwide.