Brief Description: Rivet Right Wing Drain and Fuel Cap Flanges
18-5: Step 8: Rivet Right Tank Drain Flange with hand squeezer with 426AD3-4 rivets as called out and had a difficult time getting them to sqeeze square. Drilled out all but one and resqueezed with 426AD3-3.5 which fit better and were not so long.With all tha Proseal on everything and flimsy skin moving all around the slightly long 3-4 rivets tended to bend. Step 9: Rivet Right Tank Fuel Cap Flange with T-1008 Vent Clip using a 426AD3-4.5 vs the AD3-5 rivet used during first try. Drilled out the 3-5 and tried again. This flange hole and clip did not need the extra length of the 4-5 rivet. I'm beginning to learn that some of these parts tend to pull down better than others when using Proseal and that you almost need to fit-check often to ensure rivet lengs are not too long and thus have a tendency to set baddly.
Used 426AD3-3.5 for all but one (see if you can find the long one)