Boeing could lose party status in 737 investigation, says NTSB in letter to Calhoun

Boeing could lose its party status in the National Transport Safety Board (NTSB) investigation into the 737 MAX 9 midair door plug blowout on January 5, the NTSB said in a letter to Boeing CEO Dave Calhoun. The NTSB had hit Boeing with sanctions on June 27 following its release of confidential information during a media briefing, stating that Boeing will no longer have access to the investigative documents produced by the NTSB. The letter to Calhoun was sent later that day by NTSB director office of aviation safety Timothy LeBaron. The letter said that if Boeing breaches its party