Airing and Drying Ram-Air Reserve Canopy Pilot Chute and Free Bag/Bridle Ram-Air Reserves and Sport Piggyback Systems Figure 5-19.  Ram-air/piggyback layout. 1.  The rigger should inspect the pilot chute in the same  manner as in the section on round canopies. 2.  The free bag should be checked to include all  grommets, especially those bags that have a through  loop configuration. Any sharpness in this area can  result in a damaged closing loop. For those free bags  that utilize a Safety-Stow$^{®}$ locking system, make  sure the elastic loop is of the correct size, the elastic  is in good shape, and the zigzag stitching is secure.  Many riggers fabricate these loops in the field, which  in most cases, is an unauthorized procedure. The  Safety-Stow$^{®}$ loop is an integral part of the approved  reserve deployment system and is manufactured under  an approved quality control system from approved  materials. The rigger should use only OEM-approved  parts for this. 3.  Check the bridle for any damage or wear. For those  bridles that have assistor pockets, make sure the  stitching is secure and the pockets are not damaged.  Check the Velcro$^{®}$ on the line stow pocket for wear  and security. If the Velcro $^{®}$ does not hold securely,  the parachute can experience “line dump” during  deployment, possibly causing a malfunction or out  of sequence deployment. Some deployment bags use  rubber bands to stow the lines. If this is the case, check  their condition and replace them if necessary. 4.  There are still older ram-air canopies in the field that  did not use a free bag but a diaper deployment system.  If this is the case, the diaper should be inspected the  same as that on a round canopy. Be sure to use the  correct type and length of bridle, since it is generally  not the same as a round bridle. 1.  When inspecting and assembling ram-air canopies,  begin with the upper surface of the canopy.  [Figure 5-20] Work your way up and down the  top panel of the cells looking for any damage or  contamination. Check the seams for loose stitching  and packing tabs if used, for security. 2.  Check the trailing edge seam for secure stitching,  paying particular attention to the line attachment  5-13 Shown in  Figure 5-19  is a typical ram-air reserve and  harness and container system layout. The terminology used  in describing the parts of the ram-air canopy is called out in  PIA Technical Standard TS-100, Standardized Nomenclature  for Ram-air Inflated Gliding Parachutes, which can be found  in Appendix I of this handbook. During the inspection process, the rigger must determine the  condition of the canopy and system regarding dryness and  moisture. In the past, it was necessary for the parachute to be  aired and dried for 24 hours prior to packing it. According  to 14 CFR part 65, section 65.129(c), “No certificated  parachute rigger may pack a parachute that has not been  thoroughly dried and aired.” This determination is at the  discretion of the rigger. The following inspection procedures share much with the  previous section on round canopies. The differences between  ram-air reserves and sport piggyback systems are identified  in the following section. Inspect as follows: