Blind-riveted the main spar to the nose ribs using LP4-3 blind rivets. The left H-stab went fine, but I ran into a snag on the right side. I didn't properly seat one of the blind rivets before setting it, which resulted in the head being slightly raised above the main spar surface. Then, I made matters worse by failing to keep the drill vertical when I drilled out the bad rivet, which resulted in an enlarged hole in the nose rib.
In order to fill the enlarged hole, I ordered LP4-4 rivets from Van's (which are are longer than the LP4-3s called for in the plans) and will wait for them to arrive before proceeding with anything more on the right H-stab.
The trouble spot. The upper clecoindicates the location where the nose rib hole has been elongated
