ARMY TM 10-1670-281-23&P
AIR FORCE T.O. 13C5-32-2
NAVY NAVAIR 13-1-32
2-24. Vent Reinforcement (Upper Lateral Band).
This task covers: Repair
Tools:
Equipment Condition:
Knife, Item 4, Appendix B
Cleaned, paragraph 2-12
Pot, Melting, Item 13, Appendix B
Inspected, paragraphs 2-9, paragraph 2-1 3
Sewing Machine, Light Duty, Item 16, Appendix B
Unpacked, canopy laid flat
Shears, Item 14, Appendix B
Yardstick, Item 24, Appendix B
Materials/Parts:
Marking Aid, Item 25/26, Appendix D
Thread, Nylon, Size E, Item 39/40, Appendix D
Webbing, Nylon, 1 -inch, Tubular, Item 58,
Appendix D
a. Restitching. Restitching of vent reinforcement webbing is authorized. Use a light duty sewing
machine and size E, nylon thread of contrasting color. Stitch over the original stitch pattern. Lock each row of
stitches two inches at each end.
NOTE
Vent reinforcement bands may be spliced only once and will not be replaced.
b. Damage Between Radial Seams. Repair as follows:
(1) Mark vent line position and cut stitching of two vent lines on each side of damaged area. Move lines
to one side.
(2) Smooth canopy around damaged area.
(3) Cut a piece of 1-inch wide tubular nylon webbing, long enough to extend 1 inch beyond outside edge
of second radial seam on each side of damaged area. Wax the ends of webbing (para. 2-20).
(4) Center webbing over damaged area. Using a light duty sewing machine and size E, nylon thread,
sew webbing in place with four continuous rows of stitching 1/8 inch from edge of webbing, 7 to 11
stitches per inch. Overstitch ends of webbing 1/2 inch (A, figure 2-106).
(5) Reposition vent lines and sew them in place according to original construction.
c. Damage Extending Into Radial Seam. Repair as follows:
(1) Mark vent line position and cut stitching of vent line attached to damaged radial seam and the
stitching of two vent lines on each side of damaged seam. Move lines to one side.
(2) Smooth canopy around damaged area.
2-117
