0013 00   TM 10-1670-287-23&P  4.  Remove any twists, turns, and tangles between suspension line groups.  5.  Raise lines 8A and 8B and walk them down (ensuring there are no twists) to see if line 8A runs free  from canopy to outside of right front riser connector link. Line 1A should run free to outside of left  front riser connector link.  6.  Raise lines 8C and 8D and walk them down (ensuring there are no twists) to see if line 8C runs free  from canopy to outside of right rear connector link. Line 1C should run free to outside of left rear  connector link.  0013 00-4  Change 2  Line 8D  Line 8C  Control Lines  Line 8B  Line 8A 