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## Inspection 

• Check thread tensions, stitches per inch, and overstitch lengths. 

• Damaged area must be covered completely. 

• For the overlay and single-side patches, make sure the stitch patterns catch both sides of the patch materials completely. 

## Container Grommet Replacement 

• Applicable products: All types of containers that use grommets 

• Description: Replacement of damaged grommets of all types 

• Authorized repairmen: FAA Senior or Master Parachute Rigger 

• Materials: E thread—color to match; grommets—size, type, and material to match 

• Machines: 301 straight stitch—medium duty 7–11 SPI, 308 zigzag—medium duty 7–11 SPI 

• Equipment: Scissors, seam ripper or scalpel, marking pencil, 6 inch ruler, grommet die set—size to match grommets, leather mallet, grommet cutting board, hole punch to match grommet size, basting tip (optional), and diagonal wire cutters—8 inch minimum 

## Procedure 

There are many types of grommets used in parachute container manufacture. Older style military surplus containers used flat grommets made of brass with a chrome finish, which were designed to work with cones. Most modern container systems use rolled rim spur grommets and washers. The most common size is the “O.” For many years, regular brass grommets were used and then nickel plated ones became the norm. In recent years, stainless steel has come to be the preferred type due to the ability to resist deformation and corrosion. Today, 

there are two types of “O” stainless grommets. The first is the regular or “short shank.” Recently, a long shank version has become available. It has proven to be very versatile and popular. This repair procedure focuses primarily on the “O” spur grommet and washer, but the technique can be applied to all types of grommets. 

## Disassembly—Grommet Replacement 

This is for replacing a damaged grommet or changing from brass to stainless steel. Use the cutters to remove the grommet. If the grommet is set into a fabric/webbing base, fold the material back to expose the washer. Using the diagonal cutter, cut through the washer and then peel it back from the grommet. [Figures A and  B]  Grasp the grommet and peel it from the material. 

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## Reassembly—Grommet Replacement 

If the hole is intact and undamaged, simply insert the replacement grommet into the material from the correct side, and set with the grommet die. Make sure that the grommet is set sufficiently so that there is no exposed edge to snag lines or material. 

