Up to date Jan. 7, 2024 7:10 pm ETPORTLAND, Ore.—A federal probe into Friday’s Alaska Airways flight has began with a focal point at the door plug—nonetheless lacking—that violently blew off the airplane in midair, leaving a gaping hollow in its facet.Jennifer Homendy, chair of the Nationwide Transportation Protection Board, tested the Boeing 737 MAX 9 jet after she arrived in Portland, Ore., on Saturday afternoon. She described a ghostly scene throughout the cabin with seat backs lacking and with clothes scattered round.Copyright ©2024 Dow Jones & Corporate, Inc. All Rights Reserved. 87990cbe856818d5eddac44c7b1cdeb8