MC-4 RAM AIR FREE-FALL PERSONNEL PARACHUTE SYSTEM
GENERAL CANOPY REPAIR (MAIN AND RESERVE)
THIS TASK COVERS:
Darning and Patching
Reinforcement Tape Replacement
Sewing Machine, Bartack (Table 1, WP 0015 00)
Sewing Machine, Darning (Table 1, WP 0015 00)
Sewing Machine, Double Needle (Table 1, WP 0015 00)
Sewing Machine, Light-Duty (Table 1, WP 0015 00)
Sewing Machine, Medium-Duty (Table 1, WP 0015 00)
Shears (Item 39, WP 0063 00)
Stitch Removal Tool (Item 40, WP 0063 00)
Tape Measure (Item 42, WP 0063 00)
92R (10) Parachute Rigger
Cloth, Nylon Ripstop, Type I (Item 9, WP 0076 00)
Tape, Textile and Webbing, 3/8-IN. Wide (Item 39,
WP 0076 00)
Thread, Nylon, Size A (Item 45, WP 0076 00)
Thread, Nylon, Size E (Item 43/44, WP 0076 00)
Lay out on packing table or other suitable area.
1. Darning and Patching. Repair canopy by darning, patching, or restenciling (as required) in
accordance with WP 0015 00 and WP 0017 00. Stitching and darning is specified in Table 2.
2. Seam Repair. Repair seams by restitching in accordance with WP 0015 00, using a light-duty sewing
machine. Use the illustrations below as a guide for construction of the applicable seam.
3. Reinforcement Tape Replace. Repair damaged reinforcement tape as follows:
a. Carefully remove stitches and remove damaged tape.
b. If adjacent canopy material is damaged, patch in accordance with WP 0015 00.
c. Cut new reinforcement tape 4-inches longer than damaged area. Center new reinforcement tape
over damaged area. Using a light-duty sewing machine, sew in place with size E nylon thread
using original stitch pattern.
LOADED RIB TOP SEAM
LOADED RIB BOTTOM SEAM