I know I'm late to the club so a lot of people probably won't even read this, but I think this might be interesting to toss in here:
From what we've seen, the fact is the ride wasn't being maintained to spec... however, if you read the article where the supervisor from the park is talking about the program they put into place, it seems like the maintenance team had reasons behind not maintaining the cable the same way that Intamin had originally said.
I'm positive that the maintenance guys at SFKK weren't thinking that they could save a little money by maintaining the ride differently, I'm sure that they were thinking that the ride would operate better by keeping it maintained in this way. The article on this pointed to the use of corn starch to prevent 'cable slippage'.
I'm guessing that while Intamin created a manufacturer's suggestion on how to maintain the ride, the manual didn't cover everything that possibly could have happened on such a ride. At that point, the maintenance team needs to figure out something to do to make it work. In retrospect, the corn starch idea was _obviously_ not the correct decision, but before the accident happened this might have been looked at as the solution to a problem, and they team might have agreed to do it.
My car's user manual says that I should have all of my car work done at an authorized Dodge dealer. Instead, I save some money and go to a regular mechanic, who sometimes will replace less and work for less than the dealership. At the end of the day, he could make a decision that the Dodge dealership wouldn't have made, and it could be the difference between me dying in a fiery crash on the way home, or having an uneventful drive home.
It's the same with parts. I will always purchase the 'generic' version of the Dodge part, as long as it is cheaper. If I can save even $10 for it, it makes sense to me as long as it is still above the spec of my car. From what I've read, the cables weren't provided by Intamin, but were still of the correct grade and rated for the correct weight, which doesn't sound so crazy to switch to and save a little bit of money for then.
It's hard to tell what will work in the future. In this case, as was already highlighted, as soon as this came to light, everyone in the industry re-inspected their rides without any oversight, and there was problems found at one other ride.
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Point is this -- Markey is once again attempting to introduce a bill that does nothing but suck away more tax dollars for no reason. This would not have been prevented with a new bill or whatever, but the chance is that the rest of the drop towers would still be down while they inspected. What happens if a chain lift breaks and has an issue? Does that make every roller coaster in the nation get shut down for weeks? It is an over-reaction, and the industry who makes their money from determining things like this is the one who has to decide if they are going to open the ride or not again.
I'm positive that thanks to all of the publicity over the Superman issue last year that SFKK had a drop in attendance, and I'm sure that they will feel that for years to come. I'm also sure that Six Flags will have to settle out of court for lots of money.
None of this is a deterrent for people who are working to maintain rides to not try to innovate and make things better in the future, and none of this is a guarantee that an innovation won't cause a further disaster. We can just all hope that the people who know these rides the best -- the ones who work on them on a daily basis -- continue to do their best job.
Maybe further communication could have made what was apparently just one park in the country realize that their idea to make the ride have less 'slippage' would dry out and damage the cables more, but maybe it wouldn't have. And, in thinking about how this ride and others operated, I still believe that we'll never know exactly how exactly it occurred. Because of that, maybe the maintenance people thought that even if the cable broke, it would be easier than greasing it on a regular basis, and everyone would be safe if a cable broke, right?
I don't see anyone in this that wants to cut off someone's limbs, or maim them in any way, or kill them, or whatever. Amusement parks thrive on *perceived* danger, and as soon as people think they are taking their life into their hands, they'll stop going. It self regulates, and we should leave them to that and save ourselves the tax money.