I understand that RC is responsible for the scoring, and that scoring published are provisional, until definively confirmed ( after revision, PC decisions, retirement, whatever)
Say RC find out that he wrongly scored a boat, say OCS, or wrong final position, shortly after publishing the race scoring.
My opinion is: RC, aware of the mistake, MUST amend the scoring, by themselves, no need to go through a PC hearing.
If RC do not amend the scoring, well, that's where the improper action is/might be, and ground for a request of redress.
What do you think?