NTSB sanctions Boeing for releasing details of 737 Max investigation The HillBoeing blames missing paperwork for Alaska Air incident, prompting rebuke from safety regulators CNNBoeing sanctioned for sharing Alaska Airlines blowout information The Washington PostBoeing Sanctioned by NTSB Over Disclosures on 737 Max Investigation The New York TimesUS sanctions Boeing for sharing information about 737 Max 9 investigation The Associated Press