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FAA warns of possible defect in Boeing 777 engines
(interestingengineering.com)
This is a most excellent place for technology news and articles.
FTA: "As per FlightGlobal, the FAA’s proposal is the latest in a series of regulatory actions that have been taken in response to the discovery of iron inclusion in several types of GE Aerospace engines, including the GEnx and CFM International Leap turbofans. The GEnx powers Boeing 787 aircraft, while the Leap powers Boeing 737 Max and Airbus A320neo-family aircraft."