5-45 100-Hour / Annual Maintenance and Inspection [20 of 26 Pages]
TAIL ROTOR & TAIL ROTOR GEARBOX (continued)
Wiring:
Inspect condition. Verify no loose, chafed, or broken wires or terminals. Verify
neatness, proper routing and installation, and security.
Fasteners & Torque Stripes:
Inspect condition. Verify proper installation and security of fasteners. Renew
deteriorated torque stripes per Figure 5-1.
MAST FAIRING
Mast Fairing:
Inspect condition. Verify no nicks, scratches, dents, cracks, corrosion, fretting,
or loose rivets. Verify no yielding or cracking of pitot line and fuel vent restraint
assembly.
NOTE
Yielding can be caused by over tightening screws in restraint
nutplates.
Upper & Lower Ribs:
Inspect condition. Inspect for cracks especially around mast tube attachments.
Verify proper installation and security of ribs and lower rib clamp.
Vertical Push-Pull Tubes:
Examine accessible portion with inspection light and mirror. Inspect condition per §
5-32. Verify no nicks, scratches, chafing, dents, cracks or corrosion. Inspect rod
end bearings per § 5-33; verify rod ends are centered and palnut and jam nut are
tight. Check witness holes for proper thread engagement. Verify proper installation,
security, and operating clearance.
Pitot Tube & Line:
Inspect pitot and static lines for obstructions, cracking, chafing, pinching or kinking.
Verify integrity of pitot and static line connections. Verify proper routing and security
of pitot tube and line. Verify no cracks where pitot tube mounts to mast fairing.
Verify no obstructions in pitot tube.
Fuel Vent Weldment and Tygon® Tubes:
Inspect condition. Verify no obstructions, cracking, chafing, pinching or kinking in
plastic tubes. Inspect vents for cracks or obvious damage. Verify proper installation
and security of safety wire.
Swashplate Upper Scissors:
Inspect condition. Verify bearing play within limits referenced in § 67-42. Closely
examine scissor linkage while a second person raises and lowers collective stick.
Verify bolts and washers rotate together through full control travel without binding.
Inspect fork assembly rod end bearing per § 5-33; verify rod end is centered and
palnut and jam nut are tight. Verify proper installation of all parts, part security, and
operating clearance.
Page 5.32 Chapter 5 Inspections MAY 2015
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