The Federal Aviation Administration has ordered increased inspections of the jet engines used in a half-dozen popular airliners.
The agency ordered airlines to make increased sonic and electromagnetic inspections of the spools in General Electric CF6 engines. Spools are metal discs that hold the engine's compressor blades.The inspections affect engines on Airbus A300 and A310, Boeing 747 and 767 and McDonnell Douglas DC-10 and MD11 planes.
The inspections were recommended by after an incident in which a cracked spool resulted in an engine failure on a DC-10.