TM 10-1670-287-23&P  0006 00  NOTE Ensure the knot is drawn tight against the toggle ring.  21. Permanently secure control line knot formed below. Trim the running end to the length of the toggle.  1.  Lay out parachute on a clean dry surface with canopy positioned on its left side. Leading edge (nose)  will be on right when viewed from riser end. Stretch lines full length with a helper positioned at riser  end to check continuity and to hold lines taut.  SPANWISE LINE CHECK  Perform spanwise line check as follows:  Change 1  0006 00-24  Control Line Overhand Knot Rear Riser  Ring Toggle