Boeing sanctioned by NTSB for releasing details of Alaska Airlines door blowout investigation

Boeing is being sanctioned by the National Transportation Safety Board after breaking an agreement by disclosing non-public details of the agency's investigation into the Alaska Airlines mid-air door panel blowout. 

The NTSB on Thursday said that a Boeing executive, who wasn't identified, disclosed non-public information from the investigation during a media briefing on Tuesday, and gave an analysis of some facts that had previously been released. It noted that both actions are prohibited according to an agreement that Boeing had signed that provided the aircraft maker with party status to the investigation.

"As a party to many NTSB investigations over the past decades, few entities know the rules better than Boeing," the NTSB said in its statement.