Unless such appeal is withdrawn, an appeal tribunal appointed by the executive director, after affording the parties reasonable opportunity for fair hearing, shall affirm, modify or reverse the findings of fact and initial determination or amended initial determination. The parties shall be duly notified of such tribunal's decision, together with its reasons therefor, which shall be deemed to be the final decision of the executive director unless, within fourteen (14) days after the date of notification of such decision, further appeal is initiated pursuant to Section 71-5-523.