ARMY TM 10-1670-282-23&P
AIR FORCE T.O. 13C5-302
NAVY NAVAIR 13-1-33
Annular Ring Reinforcement (Upper and Lower).
This task covers:
Knife, Item 5, Appendix B
Inspection (paragraph 2-9)
Knife, Hot Metal, Item 6, Appendix B
Cleaned (paragraph 2-12)
Sewing Machine, Light Duty, Item 17, Appendix B
Unpacked, canopy laid flat
Yardstick, Item 25, Appendix B
Pencil, Marking Aid, Item 15/16, Appendix D
Webbing, Nylon, Type I, 911/ Inch Wide, Item 33,
Thread, Nylon, Size E, Item 23124, 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
Annular ring reinforcement may be spliced only once.
Splicing. Splice damaged annular ring reinforcement as follows:
Cut a length of 9/1 6Inch wide nylon webbing long enough to extend 6inches each side of damaged area, and
sear ends as specified In paragraph 2-18.
Center webbing length over damaged area. Using a light-duty sewing machine and size E nylon thread
secure splice by stitching a box-stitch formation along full length of splice (figure 2-49).