Brief Description: Rivet starboard centre section ribs and stiffeners
Riveted stiffners in place. Installed upper skin and found rivet holes along outer rib did not line up. Drilled out 3/32 rivets from outer end of the two forward stiffeners. Appkied Sikaflex to hold stiffners in correct position relative to tyhe skin.
Installed anchor nuts on upper and lower doublers using 3-4 solid countersunk rivets.
Riveted ribs to main spar with 1/8" blind rivets (3/8" grab). Some rivets left until the upper skin is removed making access easier. NOTE: after completing this, I realised perhaps that longer rivets (1/2" grab) should have been used. Will check and rectify if required.
Fitted upper skin forward of main spar on starboard side.
