TM 10-1670-287-23&P
0049 00
UNIT MAINTENANCE
MC-4 RAM AIR FREE-FALL PERSONNEL PARACHUTE SYSTEM
CONVERSION (RESERVE CANOPY TO A MAIN CANOPY)
0049 00-1/(2 Blank)
THIS TASK COVERS:
Conversion
INITIAL SETUP:
Tools
Brush, Stenciling (Item 5, WP 0063 00)
Machine, Stencil Cutting (Item 26, WP 0063 00)
Shears (Item 39, WP 0063 00)
Wrench, 7/16-IN, Open End (Item 45, WP 0063 00)
Materials/Parts
3-Ring, Set, Riser, Main (Item 11, WP 0065 00)
Control Line Assembly, Main, Set (Item 9, WP 0068 00)
Ink, Marking, Parachute (Item 25/26, WP 0076 00)
Stencil Board, Oiled (Item 31, WP 0076 00)
Personnel Required
92R (10) Parachute Rigger
Equipment Condition
Layout on packing table or other
suitable area.
CONVERTING RESERVE CANOPY TO MAIN CANOPY
NOTE
Reserve canopies converted to main canopies retain their
service/age life from the original date of the canopy being placed in-
service/date of manufacture.
1. Using a 7/16-inch open end wrench, disconnect the reserve canopy from the reserve risers at the
connector links.
2. Perform a 100% Technical Rigger/Inspection on the canopy and suspension lines IAW WP 0011 00.
3. Perform a permeability test on the canopy IAW WP 0048 00. Canopies having an average top skin
permeability value of 6.0 cubic feet per minute (CFM) or greater are not eligible for conversion to
main canopies.
4. Replace the reserve control lines with main control lines IAW WP 0057 00.
5. Perform a suspension line continuity check IAW WP 0006 00.
6. Attach a set of main risers, to the connector links IAW WP 0006 00.
7. Using parachute marking ink, stencil the following near the data block: “Converted to P/N 11-1-3518-
0” and date converted.
END OF WORK PACKAGE
