ORIGINAL: OzMo
As a club safty officer I could not let the repaired tank fly. You would be asked to replace it before getting a clean safety check that is required at many clubs after a crash.
Holy smokes. I've heard of things like this going on, but never actually seen it. That's the sort of thing that gives some clubs a bad reputation. How is repairing a tank a safety issue? It's not the brightest thing to do, because it's likely to fail and tanks are inexpensive. That said, it's not a safety issue.