•  The container bottom must be closed correctly  and reinforced. •  Applicable products: Any main container with a BOC  pocket configuration •  Description: Installation of a BOC pocket to the  main container •  Authorized repairmen: FAA Senior or Master  Parachute Rigger  •  Materials: E thread—color to match •  Machines: 301 straight stitch—medium duty 7–9 SPI  and 308 zigzag—medium duty 7–11 SPI •  Equipment: Scissors, seam ripper or scalpel, marking  pencil, and t-pins 1.  Mark the location of the corners of the BOC pocket  on the container with a marking pencil. 2.  Open the lower right corner of the main container.  [Figure A] 6.  Close the bottom of the container as per the original  and reinforce as required. •  Check that the flap is installed correct side out. •  Check the inside binding for reinforcing stitching. •  The side flap/riser cover should be stitched and  reinforced. Inspection Disassembly Procedure Bottom of Container (BOC) Pocket Replacement The following technique is typical of many modern container  systems. This procedure addresses only the disassembly of  the container and replacement of a factory made replacement  part. It does not address the manufacture of a replacement  part. Depending on the size of the container assembly, it may  be possible to do the replacement of the BOC pocket with the  reserve packed. However, the smaller the system, the more  difficult it will be. If the container cannot be placed under  the machine, then remove the reserve canopy. 3.  Remove the old BOC pocket. 7-48