Boeing is finalizing a software fix for a flight-control system malfunction linked to the accidents involving Lion Air and Ethiopian Airlines, as well as proposed new pilot training. A combined 346 people were killed in the crashes five months apart. American "remains confident that impending software updates to the Boeing 737 Max, along with the new training elements Boeing is developing in coordination with our union partners, will lead to re-certification of the aircraft soon,"' the statement said. The planes were grounded worldwide on March 13.