Preliminary findings help uncover the horrific events that took place last month, when a brand new Boeing plane stuffed food in the middle of the flight**.
On Tuesday, the National Transportation Safety Board (NTSB) released the results of an investigation into the Boeing 737 Max 9 jet accident in which the cabin panels were in flight**. In a 19-page report containing evidence, the NTSB stated that the four bolts that were originally used to hold the door plug in place were not found.
The four bolts that prevent the [middle exit door] plug from moving up are missingThey wrote.
The door plug was first installed by contractor Spirit Aerosystems in Kansas, USA, and then shipped to Boeing's plant in Washington State, USA.
According to the commission, the four bolts were removed last year when Spirit Aerosystems workers repaired damaged rivets at the Boeing plant in Washington. A photo** taken during the repair shows at least three bolts that have not been replaced.
However, the report did not specify who was responsible for failing to reinstall the bolts. But Boeing's chief executive said the company was "responsible" for the recent doorplug incident.
The NTSB's investigation will continue and it may take a year or more before a final report is issued.
In early January, an Alaska Airlines flight was flying at an altitude of about 16,000 feet after taking off from Oregon, USA, when one of the door plugs suddenly burst, leaving a large hole in the side of the plane. The flight was carrying 177 people at the time.
Boeing's MAX 9 aircraft were then grounded for several weeks. After inspections, they have been allowed to be put back into service, but the Federal Aviation Administration (FAA) said that further production of the MAX project will not be allowed.