TM 10-1670-201-23
T.O. 13C-1-41
NAVAIR 13-1-17
(c) Turn the material and weave the
needle and thread back and forth across the stitching
made in (b) above until the hole is completely darned
(B).
(d) If applicable, restencil informational
data or identification marks as outlined in paragraph 3-5.
b. Zigzag Sewing.
Airdrop items, except
parachute canopies, made from textile materials that
have sustained cut or tear damage may be repaired by
zigzag 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 zigzag sewing repair will be accomplished using a
zigzag sewing machine, the specifics cited in the
applicable item equipment publication, and the following
procedures.
(1) Set the sewing machine to the maximum
stitch width.
(2) Beginning at a point 1/4 inch beyond one
end of the cut or tear, stitch lengthwise along the
damaged area to a point 1/4 inch beyond the opposite
end of the cut or tear (A, fig. 3-3). The cited stitching
procedure will also apply to an L-shaped cut or tear (B).
(3) If applicable, restencil informational data
or identification marks as prescribed in paragraph 3-5.
Figure 3-3. Repair method using a zigzag sewing
machine, typical .
3-5