The National Transportation Safety Board recommended more hands-on training and oversight at Boeing after an Alaska Airlines jet came apart in flight.

One of a team of 24 had opened a door-plug before, but he was on vacation — leading the NTSB to criticise Boeing's on-the-job training.

Boeing failed to provide adequate training, guidance and oversight to prevent a mid-air cabin panel blowout of a new 737 MAX 9 flight in January 2024 that spun the planemaker into a major crisis, the National Transportation Safety Board said on Tuesday.