After you complete the normal OER appeals pursuant to the OER Regulation, you may want to consider Army Board of Correction of Military Records. File a DA Form 149. It may take a while.
I knew an officer in Korea that after he won his lengthy appeals went from Captain to Lieutenant Colonel over night.
Contact Doug Andrews, attorney in Savannah, who is currently doing military-rlated law s he is a form Jag. Tell him I said Hi!
I am an attorney, practicing throughout the state of Georgia, but primarily in the areas around Augusta, Statesboro and Savannah, Georgia. You may review more information about my practice by going to: http://www.avvo.com/attorneys/30809-ga-elmer-young-540135/reviews.html. The information I am providing you should only be considered for your general knowledge and educational purposes. Consider it as a good first step in your knowledge acquisition, but not as legal advice. Indeed, any information I provide is based on the extremely limited facts you have provided and new facts could substantially alter any answer or reply. My opinion should be understood to apply only to the laws of the State of Georgia. You should always consult with a local attorney about your situation if you live outside of the State of Georgia.
Without seeing and reading the OER in question and talking to your rater, no one can really answer your question except in a generic fashion. Obviously, it would be better to have it corrected before it's placed into your permanent records, so as a prior poster recommended, I would contact someone with military law experience ASAP.
If HRC is saying that there's a technical or procedural violation - have you tried talking to your CO about it? If not, do that as well.