TM 10-8415-208-12 Table 2-1.  Operator Preventive Maintenance Checks and Services for the STEPO-I (Cont) B - Before Operation D - During Operation INTERVAL Item Item To Be Procedures Equipment Is No. Inspected Check For And Have Repaired Not Ready/ B D Or Adjusted As Necessary Available If: 10 • Internal Hood Ensure all four snaps are Snaps are not in Flap secure. place. NOTE PMCS steps 11 through 26 are checked only when using the tether system. 11 • Suit Inflation Ensure the suit inflates in the Suit fails to inflate tether mode. in the tether mode. 12 • Bend over or push the suit in Air does not towards your body to ensure exhaust through the air leaves the suit through the exhalation valves. exhalation valves. Tether Line (Tether Mode) 13 • Tether Line Ensure tether line is available. Tether line not available. EBA (Tether Mode) 14 • Vent Tubes Ensure tubes are secure, not Tubes are loose, tangled, have wrist and ankle missing straps, dirty straps, clean and not cut. or cut. 15 • Ensure tube air holes are not Air holes covered. covered. 16 • Vent Tube Ensure plugs are installed in Plugs missing. Plugs vent tube ends. 17 • Metal Inspect for damage and Damage is found or Components tightness of connections. connections are loose. 18 • Waist and Inspect webbing for rips or Webbing is ripped or Chest Straps tears and broken buckles. torn or buckles broken. 19 • Head Harness Inspect for missing or broken Buckles are broken Straps buckles.  Ensure proper fit. or missing.  Proper fit cannot be made by minor adjustments. 2-9