Finish welded reinforcement to the right step support to smooth up the trailing edge for better contour. Removed the 0.025" Z angle from the fudelage bottom between the step supports. Replaced it with a 0.125" x 3/4" angle. Riveted it with #5 rivets. Replaced the vertical 0.025" L angle at the left step mount with 0.125" x 3/4" angle. Increased rivet size from #4 to #5. Welded 3/4" to the left side tube that goes under the fuselage so it fit tighter into the sleeve over the end of the right side tube. This helps keep the tube from bending as much when stepping on the entrance step.