alt Hacker NewsUsing the same o-rings afterwards is surprising, I've heard that the manufacturer was surprised that they were being used for that purpose because they weren't rated for that.
Also I'm not sure the assertion is correct. If the sealant and O-Rings were adequate, the joint would not have failed. It was suboptimal, and increased risk, sure, but it in itself wasn't the reason for the accident. It was the joint and the o-rings in combination. The holes in the swiss cheese model lined up that day, and a lot of small problems combined into one big problem
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Surprised? One of the engineers was literally on the phone with NASA the morning of the disaster begging them not to launch. He was overruled by management.
> If the sealant and O-Rings were adequate, the joint would not have failed.
That assertion requires some reasoning and evidence to back it.
>> Using the same o-rings afterwards is surprising, I've heard that the manufacturer was surprised that they were being used for that purpose because they weren't rated for that.
Not surprising if you understand what the real cause was: https://news.ycombinator.com/item?id=47585889