TM 10-1670-287-23&P
0027 00
UNIT MAINTENANCE
MC-4 RAM AIR FREE-FALL PERSONNEL PARACHUTE SYSTEM
CROSSPORT MAIN OR RESERVE CANOPY
0027 00-1
THIS TASK COVERS:
Patching
Searing
Replacing
INITIAL SETUP:
Tools
Knife, Hot Metal (Item 24, WP 0063 00)
Sewing Machine, Double Needle (Table 1, WP 0015 00)
Sewing Machine, Light-Duty (Table 1, WP 0015 00)
Shears (Item 39, WP 0063 00)
Template, Crossport, Oversized (Item 43, WP 0063 00)
Template, Crossport, Standard (Item 44, WP 0063 00)
Materials/Parts
Cloth, Nylon, Ripstop, Type I (Item 9, WP 0076 00)
Thread, Nylon, Size A (Item 45, WP 0076 00)
Thread, Nylon, Size E (Item 43/44, WP 0076 00)
Personnel Required
92R (10) Parachute Rigger
Equipment Condition
Layout on packing table or
other suitable area.
Follow-Up Procedure
Continuity check and canopy
trim check
PATCHING CROSSPORTS
1. Lay the rib area out on a worktable.
2. Using basic patching procedures outlined in WP 0015 00, apply the patch to the crossport as
required.
3. Let the new fabric overhang the crossport on the fourth side of the patch.
4. Using a light-duty sewing machine, sew the patch with two (2) rows of size E nylon thread, 7 to 11
stitches per inch.
5. Sew a lock stitch on the raw edge side of the patch a minimum of 2-inches on each row.
Crossport
Fourth Side of
Patch
