4.9 hrs
Finish countersinking left tank skin.
Drill spar attach holes to #19
Remove tank attach Z brackets.
Debur brackets. Drill brackets for nutplates.

Fabricate both tank nose attach brackets. Made a copy of the plan detail, then cut out the brackets with scissors. Then traced around those patterns, and cut the angle stock on the band saw.

After removing the baffle, put it back on the tank backward, so got confused about inboard/outboard when fabbing the tank attach brackets and match drilling to the inboard rib. As a result, match drilled the tank nose attach bracket to the outboard rib. Doh!
Was thinking I would have to swap ribs and other drastic recoveries, until I realized that the reinforcement plates use the same drill pattern. So, no problem. Just use the rib to match drill the reinforcement plate.

Cut all nose reinforcement plates. Finished the left inboard plate, ready to match drill.