The company said it believes the records about the panel’s removal and reinstallation were never created, even though Boeing’s systems required it.
https://www.king5.com/mobile/article/travel/boeing-says-it-cant-find-work-records-related-to-door-panel-that-blew-out-on-alaska-airlines-flight-max/507-361e1721-f8de-40e7-af96-921825929cb7