MC-6 PERSONNEL PARACHUTE SYSTEM
MAIN CANOPY VENT LOOP CENTERING LINE
92R (10) Parachute Rigger
Sewing Machine, Medium Duty, Zig-Zag (Item
The Vent Loop Centering Lines shall be installed so that the Vent Loop is contained by
the centering loop opening. Vent lines shall not be routed through the opening in the
centering loops, and the centering loops shall not be routed through each other.
Replace a missing or damaged vent loop centering line as follows:
1. Remove the damaged vent loop centering line by removing the stitching that holds the vent loop
centering line to the vent line. Clean the vent line by removing all loose pieces of thread.
2. Cut the replacement vent loop centering line 9 inches long with marks every 3 inches, using Cord,
Nylon, Type II. Hot cut (sear) the ends smooth.
3. Center the replacement vent loop centering line on the same vent line that the previous vent loop
centering line was attached. Verify the routing. See note above.
Backstitch both ends a minimum of 1-inch. Once both sides are sewn, there will be a 3-
inch gap for the vent loop.