TM 10-1670-287-23&P  0013 00  13. Grasp uppermost control line and pull taut. Position seam on folded canopy so control line is on top  of line groups A, B, C, and D.  14. Continue to flake and smooth remaining tail seams. Lines should remain taut throughout the  procedure.  0013 00-13   Change 2  A, B, C, and D,  Line Groups Uppermost  Control Line Tip of Stabilizer  Panel  Control  Lines  A, B, C, and D,  Line Groups 