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b. Using darning needle and a length of size A or E nylon thread, begin darning at one corner of marked area. Working parallel with the marking, pass needle and thread back and forth through material until opposite diagonal corner of marked area is reached as shown in illustration A, below. 

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c. Turn material and weave needle and thread back and forth across stitching made in b., above, until hole is completely darned as shown in b., above. 

d. If applicable, restencil informational data or identification marks as outlined in WP 0052 00. 

3. Zig-zag Sewing. (Refer to tables 1 and 2) Components of the MC-4, except parachute canopy, that have sustained cut or tear damage may be repaired by zig-zag sewing provided the applicable damaged area does not have any material missing and the cut or tear is straight or L-shaped. Should the damaged area be irregular shaped or have material missing, the repair will be achieved by either darning or patching, as required. A zig-zag sewing repair is accomplished using a zig-zag sewing machine as follows: 

a. Set sewing machine to maximum stitch width. 

b. Beginning at a point ¼-inch beyond one end of cut or tear, stitch lengthwise along damaged area to a point ¼-inch beyond opposite end of cut or tear. 

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