Riveted E-703 to E-704. Riveted E-610PP and E611PP spar reinforcement plates and corresponding platenuts to E-702 elevator spar. Riveted E-709 to E-702 elevator spar using CS4-4 blind (flush) pop rivets. Riveted E-703/E-704 assembly to E-702 elevator spar Riveted WD-605-1-R elevator horn to E-702 elevator spar and E-709 rib.