If this happened more than once I would agree on a CA but not here. We have hundreds of gages in our system and do a good job tracking them with the help of gage track software. Even with software I wouldn't think of NOT having something built into the system to cover yourself when stuff happens - and it will happen.
Yes, but your system should be robust enough to prevent the occurrence of this failure and if it is not how do you know it won't happen again? If you don't perform a CA this could continue to happen and like I said in an earlier post, what if the NEXT time results in non-conformance reaching the customer?
Do it now, because otherwise what's the point in your QMS? If you ignore it as a one off event then I think you are in danger of completely disregarding the concept of 'Continual Improvement', and then where would you be.
The only time I would say leave it is for commercial reasons (you don't want to because it takes too much of your valuable time) and in this case I suggest you design a better CA system.
I don't know all the detail of this particular incident but I would say if you can improve it, do it.
