ARMY TM 10-1670-294-23&P
AIR FORCE T.O. 13C5-33-2
NAVY NAVAIR 13-1-34
2-23. Vent Reinforcement (Upper Lateral Band).
This task covers:
Knife, Item 5, Appendix B
Inspected (paragraph 2-13)
Knife, Hot Metal, Item 6, Appendix B
Cleaned (paragraph 2-12)
Sewing Machine, Medium Duty, Item 20, Appendix B
Unpacked (canopy laid flat)
Yardstick, Item 25, Appendix B
Pencil, Marking Aid, Item 12, Appendix D.
Webbing, Nylon, Type VI, 1 3/4-Inch, Item 35,
Thread, Nylon, Size E, Item 23/24, Appendix D
Restitching. Restitching of vent reinforcement tape 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.
The canopy Is reinforced with two vent reinforcement tapes, one on the inside and
one on the outside. If a damaged lateral band is originally made of two piles of
webbing the splice may be made on either inside or the outside of the canopy,
depending on the location of the damage In the event both piles of webbing are
damaged, a splice will be applied to both sides of the canopy.
Vent reinforcement tapes may be spliced only once and will not be replaced.
Upper Lateral Band. A parachute canopy upper lateral band may be spliced one time as follows.
Place the applicable canopy on a repair table with the damaged side of the upper lateral band
facing up and smooth out the canopy material in the affected area.
If the damage is located between radial seams (A, figure 2-40), cut the stitching securing the
two vent lines on each side of the damaged area and lay the four vent line ends aside. Should
the damage extend into a radial seam (B), cut the stitching of the vent line attached at the
affected radial seam and also cut the stitching of the two vent lines located beyond each side
of the damaged area. Lay the five vent line ends aside.
Cut a length of webbing long enough to extend 1 inch beyond the outside edge of the second
radial seam located on each side of the damaged area and wax the ends. The type of webbing
material to be used will be as prescribed In the applicable Item equipment publication.