NTSB Conducting New Interviews With Boeing on 737 MAX 9 Door Plug Probe

WASHINGTON—The National Transportation Safety Board is conducting a new round of interviews with Boeing and Federal Aviation Administration personnel this week in its probe of the January Alaska Airlines 737 MAX 9 in-flight emergency. NTSB Chair Jennifer Homendy on Wednesday said investigators were back at the 737 plant in Renton, Washington, this week for more interviews. “We are looking at other instances where a door plug was opened and closed to make sure that those records are available,” Homendy said at a U.S. Senate hearing, saying investigators want to make sure those other instances were documented. Boeing, whose shares fell 2 percent on Wednesday, declined to comment on the interviews....