5-45 100-Hour / Annual Inspection (continued)
MAST FAIRING (continued)
Swashplate Lower Scissors:
Inspect condition. Verify bearing play within limits referenced in § 67-40, steps 9
and 10. 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.
Swashplate Slider Tube:
Inspect condition. Verify no cracks, corrosion, or loose rivets near tube base flange.
Verify no damage or wearing through of anodized coating on tube surface. When viewed
under 10X magnification, minute "checkerboarding" of anodized surface is normal.
Swashplate Interior:
Remove swashplate boot lower ty-rap. Lift boot from swashplate, and verify no
boot defects, tears, or material deterioration. Examine swashplate interior with
inspection light and mirror. Verify no corrosion or debris between main rotor drive
shaft and inside of slider tube. Install swashplate boot lower ty-rap. Verify proper
boot position, security, and operating clearance.
Swashplate:
Inspect condition. Verify no nicks, scratches, gouges, dents, cracks, or corrosion.
Verify 0.020 inch maximum radial play between swashplate ball and slider tube.
Rotate rotor by hand and verify no rough or dry bearings. Verify proper operation.
Swashplate Shimming:
Closely examine area between lower swashplate and swashplate ball while a second
person slowly raises and lowers collective stick. Verify synchronized movement of
swashplate ball with swashplate when swashplate reverses direction.
NOTE
Swashplate shimming is required when swashplate ball lags
collective inputs, indicating axial play. Shim swashplate per
Chapter 67.
Fasteners & Torque Stripes:
Inspect condition. Verify proper installation and security of fasteners. Renew
deteriorated torque stripes per Figure 5-1.
Close & Secure:
Verify foreign objects are removed. Verify equipment security. Verify cleanliness of
interior and of access fairing. Close mast fairing and verify security.
JUL 2020 Chapter 5 Inspections Page 5.33
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