While I was bending off the heady this afternoon (not ideal conditions with the Westerly today I know, but it had to be done), there was a loud 'twang' followed by a bang as a 100mm or so piece of furler track fell to the deck while the sail was flogging a bit. Luckily it bounced inboard and not over the side.
Can anyone tell me what I've damaged/broken and what ill need to do to fix it? It'll be a trip up the mast I'm guessing (which i actually love doing), but what will i need to do while im up there? Furler is a Profurl c320. Thanks.

Thanks so much Retired,really appreciate it.
I'll head up the mast for a look-see before ordering missing parts, they may still be there i hope - i only heard one impact on the deck, but of course they could have gone overboard. Worth checking anyway.