The article said that each wing wheel truck has six tyres. Redundant design. Apparently five is plenty.
I worked with a guy who did four years in the Air Force. One night in Cambodia he serviced a brake assembly on a B-52 and left out a component. The brake locked. He was court-martialed. He and his supervisor lied, testifying that the supervisor was holding the flashlight while he was following the tech order. In fact, he was going from from memory and playing it by ear.
He was acquitted.
I’m scared of flying. I’d probably get airsick (is that a thing?)