It's not uncommon for this to break off making your only options to tape it back on or follow guides to renew.
I'd like to do the latter. But so far it's going well. Only downside with taping it is you need to periodically check to see that it's got a good connection. So that no hot air is being inducted.
That is the quick and cheap method however should you want to make it more permanent and look better then view John_D's thread on improving the air flow.
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