0037 00  TM 10-1670-287-23&P  Ensure the pre-cut hole for the grommet is large enough to  accommodate a new grommet. If not, enlarge the hole  using a $^{5}$/$_{8}$-inch countersink drill and $^{5}$/$_{8}$-inch drill bit as  required.  0037 00-4  Change 1  (f) Replace stiffener and set a new grommet ensuring the grommet is rolled over  washer and the washer is on the inside of the container.  (g) Using a medium-duty sewing machine, size E nylon thread and 7 to 11 stitches  per inch, replace the single row of straight stitching removed in step (b), above.  (3)  Replace right flap pack stiffener as follows:  (a) Remove lacing tape on base plate.  (b) Remove the No. 2 grommet.  (c) Cut the single row of straight stitching on the inside of the container exposing  the clear plastic.  (d) Remove broken plastic stiffener.  (e) Replace the grommet IAW WP 0038 00.  (d) Obtain a new stiffener from supply stock.  (c) Remove broken stiffener.  (b) Cut the single row of straight stitching on the inside of the container exposing  the plastic pack stiffener.  (a) Remove the No. 0 grommet IAW WP 0038 00.  (2)  Replace bottom and left flap pack stiffeners as follows:  (c) Reattach the new pack stiffener to the container using a medium-duty zigzag  sewing machine, size FF thread, and 7 to 11 stitches per inch.  (b) Obtain a new pack stiffener from supply stock.  (a) Cut stitching and remove plastic pack stiffener from container.  (1)  Replace the top flap pack stiffener as follows:  b.  Main Parachute Compartment. Replace top flap, bottom flap, left flap and right flap pack  stiffeners as follows:  (8)  Reattach a serviceable harness/container IAW WP 0005 00 and WP 0006 00.  (7)  Remove connector links from risers.  (6) Using  a  $^{7}$/$_{16}$-inch open-end wrench, loosen barrel nuts on connector links.  NOTE