How to deal with a default record on my credit report that continues to haunt me even when my credit score is now AA?

" Closed credit accounts will reflect the last 12 months payment status history as at the date of closure for a period of 3 years. Default records uploaded by Members with the status of Negotiated Settlement or Full Settlement will remain for 3 years from date of settlement. As for default records with the status of Outstanding and Partial Payment, it will remain indefinitely on your credit file .Bankruptcy data, if any, will be displayed for 5 years from the date of discharge. "

You may want to check with Credit Bureu for clarification.