1) De-burred upper reinforcement plates and clecoed to R-902 spar. 2) Fluted R-903 and R-912 ribs. Clecoed to R-902 spar and match-drilled to #30. 3)Clecoed R-913 counterbalance skin to to R-903 and R-912 ribs; match-drilled to #40. 4) Trimmed and fit R410PP Rudder Brace. Match-drilled to #30. De-burred edges of R410PP Brace.
