When you do internal audits, see if you still have the same problem. If you do, your fix was not effective. To run around looking for documents to prove that action was taken would not satisfy me as effective follow-up. I am more into knowing what the problem was and what was done about it. Only the government is satisfied with paperwork.
Manufacturers have to pay for their mistakes.
We should be trying to show them how to get improvement not how to talk our way out of trouble.