Drill #40 and cleco W17-06, -07, -08, -09 Reinforcement Angle to W17-01L Left Root Rib (Fwd). Disassemble: W15-01 thru -04, -05 x 8 Fwd Rib W16-01 thru -04, -05 x 8 Aft Rib W14-02 x 10 Center Spacer W14-03 x 8 Web Spacer W08-01L Left Main Spar W12-01L Left Rear Spar Debur: W12-01L Left Rear Spar W13-01L Left Attach Plate W13-04 Doubler W12-04 Splice Plate W13-05L Tib Rib Attach Angle W13-03L Left Outboard Rear Spar Channel Reassemble all and cleco, ready to rivet.