[Top 20 US Stock Sales: Boeing 737 MAX Exposes Safety Issues - Possible Loss of Steering Rod Nuts] 17th ranked Boeing closed down 0.67%, with a transaction of $1.296 billion. The Federal Aviation Administration (FAA) announced on Thursday that it is urging aircraft manufacturer Boeing to conduct targeted inspections of its 737 MAX aircraft to identify and address potential bolt loosening hazards in the rudder control system.