Grandsons employer had wrong ssn he e filed with correct ssn. He just got his new w2 with correct ssn does he need to send irs both his wring and new w2

Grandsons employer had wrong ssn on w2 he went ahead and e filed with correct ssn. Employer fixed his w2 does my grandson now need to send in his wrong and corrected w2 to both state and federal and does he need any other forms