Procedure Manual No. AT 101 FAA Original Issue Date: September 19, 1989 APPROVED Revision: 8 Date: June 1, 1997 PROCEDURE NO. AT 101 – R PROCEDURES FOR RIB ATTACHMENTS AND ACCESSORIES After application and tautening of the fabric rib stitching and other approved attachment procedures are performed. Methods of attachments may be wing clips, pop rivets, P K screws, Martin Clips, or rib lacing (stitching) cord. Fabric must be attached according to FAA approved methods specified by the original aircraft manufacturer. If rib lacing cord is called for only Air-Tech RC 18 Rev. 1 Rib Stitch Cord may be used. 1. Per FAA AC 43.13 – 1A Para.
132 prior to the reinforcement tape application brush one thinned coat (3/1) of UA 55 Rev. 1 to the tops of the ribs. Use the brush or other aid to work the adhesive into the fabric and to ensure air is not entrapped. 2. Allow the adhesive to dry 5 minutes and then apply the reinforcement tape. 3. Install the rib attachments per FAA approved methods specified by the original manufacturer. Notes: 1. If rib stitching lay out the stitch spacing with a lead pencil (NO INK PENS!!) making sure the stitches do not interfere with cables, pushrods, wiring, plumbing, etc. 2. Drain grommets and inspection rings are attached with Air-Tech UA 55 Rev. 1 adhesive. 3.
Fabric doublers and optional inspection ring reinforcements may be cut from scrap fabric and are attached in the same manner as surface tapes (AT 101 – ST, page 5 herein). When cutting these items use pinking shears as pinked edges minimize loose fibers and unraveling. Limitations: Do not apply adhesive below 40 degrees Fahrenheit. Allow 24 hours for adhesive cure to full strength. Page 10