Siphon feed gun .............................................................8-7 Size requirements for different aircraft........................8-18 Skids.............................................................................1-42 Skin protection .............................................................7-53 Skis...............................................................................1-37 Slats..............................................................................1-30 Sleeve bolts ..................................................................4-56 Slip roll former.............................................................4-23 Snake attachment .........................................................4-16 Soft or harsh flames .....................................................5-13 Soldering ......................................................................5-21 Solenoids......................................................................9-99 Solid laminates.............................................................7-37 Solid release film .........................................................7-21 Solid shank rivet ..........................................................4-31 Solid-state regulators ...................................................9-40 Solutions to heat sink problems ...................................7-26 Spar repair..................................................................4-104 Special fabric fasteners ..................................................3-6 Specialized repairs .....................................................4-107 Speed brakes ................................................................1-30 Spin forming ................................................................4-26 Splayed patch ...............................................................6-20 Spoiler ..........................................................................1-30 Spot welding ..................................................................5-6 Spray dust.....................................................................8-16 Spray equipment ............................................................8-6 Spray gun operation .....................................................8-11 Spray guns......................................................................8-7 Spraying .........................................................................8-5 Spring-back ..................................................................2-45 Squaring shear................................................................4-9 Stabilator ......................................................................1-27 Stability ..........................................................................2-9 Stability augmentation systems (SAS).........................2-31 Stabilizers.....................................................................1-24 Stabilizer systems.........................................................2-30 Stain .............................................................................4-91 Stainless steel ...............................................................5-17 Stall fence.....................................................................1-34 Static stability.................................................................2-9 Steel..............................................................................5-16 Step drill bits ................................................................4-17 Storage and handling....................................................7-54 Storage of finishing materials ......................................8-21 Straight extension.........................................................4-16 Straight line bends........................................................4-74 Strength characteristics ..................................................7-2 Stress analysis ................................................................1-7 Stresses applied to rivets..............................................4-34 Stresses in structural members.......................................4-2 Tabs..............................................................................1-31 Tail cone.......................................................................1-22 Tail rotor tracking ........................................................2-33 Tail wheel gear.............................................................1-37 Tapered shank bolt.......................................................4-56 Technical standard order................................................3-4 Tee joints......................................................................5-31 Temperature variations in repair zone .........................7-25 Tension..........................................................................,1-7 Tension regulators........................................................2-45 Terms used in the glue process ....................................6-10 Testing glued joints......................................................6-13 Thermal survey ............................................................7-26 of repair area.............................................................7-25 Stretch forming .................................................. 4-24, 7-55 Stretching ........................................................... 4-58, 4-77 Stretching tools ............................................................4-27 Stretching with V-block method..................................4-75 Stringer repair ............................................................4-102 Stringers .........................................................................1-9 Stripping the finish.......................................................8-20 Structural alignment.....................................................2-48 Structural fasteners.......................................................4-31 Structural Repair Manual (SRM).................................2-40 Structural stresses...........................................................1-6 Structural support during repair ...................................4-92 Subsonic flow.................................................................2-4 Suitable wood.................................................................6-7 Support tooling and molds ...........................................7-20 Surface patch................................................................6-20 Surface preparation for touchup...................................8-20 Surfaces........................................................................8-10 Surface tape....................................................................3-5 Swage-type terminals...................................................2-41 Swash plate assembly ..................................................2-28 Switches .......................................................................9-96 Double-pole double-throw (DPDT) .........................9-98 Double-pole single-throw (DPST) ...........................9-98 Double-throw switches.............................................9-98 Precision (micro) switches .......................................9-99 Rotary switches ........................................................9-99 Single-pole double-throw (SPDT)............................9-98 Single-pole single-throw (SPST) .............................9-98 Spring loaded switches.............................................9-98 Toggle and rocker switches......................................9-98 Two position switch .................................................9-98 Symmetry check...........................................................2-51 Synthetic enamel............................................................8-4 System air filters ............................................................8-7 T  I-10