The National Transportation Safety Board (NTSB) is expected to announce the probable cause of last summer’s crash of an Asiana Boeing 777 at San Francisco International airport at a June 24 meeting. The doors to the NTSB’s board room at 429 l’Enfant Plaza SW, in Washington, D.C. open at 7:30 a.m. EST, with the meeting due to begin at 9:30 a.m. EST. The session can also be viewed online.