Investigators probing an engine explosion on an Air France A380 in 2017 are studying a possible manufacturing flaw with a key part, in a move likely to trigger checks on dozens of Airbus superjumbos worldwide.
The focus of a two-year-old investigation into the mid-air explosion over Greenland has switched to the recently salvaged "fan hub."
The plane was carrying more than 500 passengers when it went missing.
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