US transport safety officials investigating a mid-air emergency on a Boeing 737 Max 9 plane have released thousands of pages of documents, including testimony describing the “chaos” in the moments after the blowout of an unused door. It came as a two-day National Transportation Safety Board (NTSB) hearing about the 5 January incident on an Alaska Airlines flight got underway.

Alaska Air

During the event, Boeing told investigators it will introduce design changes to prevent similar incidents from happening in the future. The blowout triggered the US aviation giant’s second major crisis in recent years. In the more than 3,000 pages of documents released ahead of the hearing, the plane’s crew described the violent decompression that resulted from the panel detaching mid-flight.

Alaska Air crew detail

The plane’s co-pilot told the investigation there was a “loud bang, ears popping, my head got pushed up into the [head-up display] and my headset got pushed, not off my head, but up almost off my head.” “And then, just all of a sudden, there was just a really loud bang and lots of whooshing air, like the door burst open,” a flight attendant said.

“Masks came down, I saw the galley curtain get sucked towards the cabin.” The names of the air crew have been redacted in the documents. At the hearing, Boeing executives were grilled about the manufacture of the aircraft involved in the incident and the lack of paperwork explaining who carried out work on the door plug before the blowout.

A preliminary report by the NTSB detailed how, after a repair at a Boeing facility, the panel had four bolts missing, which should have helped keep it in place. “The safety culture needs a lot of work,” said NTSB Chair Jennifer Homendy, adding that the plane maker needs to take steps to address the issues. “They are working on some design changes that will allow the door plug to not be closed if there’s any issue until it’s firmly secured,” said Boeing’s senior vice president for quality Elizabeth Lund. The NTSB and Boeing have yet to find out who was responsible for removing and reinstalling the door plug.

Alaska Air

But Ms Lund said two workers who are likely to have been involved are now on paid administrative leave. The incident was the latest major blow to Boeing’s reputation. It resulted in the grounding of Max 9 planes around the world for two weeks, a ban on increasing production, a Federal Bureau of Investigation probe and a management shakeup. The company recently said it would plead guilty to a fraud charge related to fatal crashes of two of its 737 Max planes more than five years ago.

Aug 6 (Reuters) – Alaska Airlines (ALK.N), opens new tab flight attendants feared passengers had been sucked out of the plane in the chaos following the Jan. 5 mid-air panel blowout on a Boeing (BA.N), opens new tab 737 MAX 9 jet, according to harrowing testimony released by safety experts on Tuesday.

The comments gathered from interviews with attendants – who were not named – were among thousands of pages of evidence made public ahead of a two-day hearing that began earlier on Tuesday by the U.S. National Transportation Safety Board about the incident. They provide dramatic accounts of the cabin crew’s efforts to help passengers and communicate with pilots when the panel blew off the jet at 16,000 feet after taking off from Portland, Oregon.

Alaska Air

“I said there is a hole in the plane, in the back of the plane and I’m sure we’ve lost passengers,” said one flight attendant with about 20 years of experience, after spotting the hole in the plane and five empty seats. The attendant was worried about an unaccompanied child toward the plane’s rear. “All I could think of was that he was sitting there and he was too small to reach the mask and was probably really scared.”

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