Boeing says no documents found on 737 MAX 9 key part removal

Boeing said on Friday it believes required documents detailing the removal of a key part during production of a 737 MAX 9 that failed during a mid-air emergency were never created, according to a letter seen by Reuters.
The National Transportation Safety Board (NTSB) said last month the door plug that flew off an Alaska Airlines 737 MAX 9 jet mid-flight on Jan. 5 appeared to be missing four key bolts.
Boeing Executive Vice President Ziad Ojakli told U.S. Senator Maria Cantwell in the letter, “We have looked extensively and have not found any such documentation” and that the planemaker’s working hypothesis was “the documents required by our processes were not created when the door plug was opened.”
NTSB Chair Jennifer Homendy on Wednesday criticized what she called Boeing’s lack of cooperation and failure to disclose some documents, including on the door plug opening and closing, as well as the names of 25 workers on the door crew at the 737 factory in Renton, Washington.