Finished match drilling left elevator stiffeners.
Started deburring stiffeners. Got about 2/3 done.

Match drilled, deburred and dimpled platenuts for the reinforcement plate.

Deburred and dimpled trim reinforcement plate using the #6 dimple die that arrived this morning from Avery.

Fluted 903/904 tip ribs. They needed a fair amount of work, including the end flanges. These were obvious when trying to fit the counterbalance skin. Without agressive fluting, the holes in the skin will not match the ribs. Clecoed the tip ribs together.

Cleco 913 counterbalance skin to tip ribs, both sides.