5-45 100-Hour / Annual Inspection
LANDING GEAR
Landing Gear Fairings (if installed):
Open as required to access landing gear structure for inspection. Inspect condition.
Verify no nicks, scratches, dents, cracks, corrosion, fretting, or loose rivets. Verify
hose clamp security and acceptable general cleanliness of fairing interior. Close and
secure fairings.
Skid Tubes & Shoes:
Inspect condition. Verify skid tube and skid shoe wear is within limits specified in §
32-30 & 32-31. Verify drain holes are not obstructed. Verify security of rain caps;
if rain cap is loose or damaged, verify no internal corrosion. Verify security of ground
handling wheel brackets and step(s) if installed.
Struts Assemblies:
Inspect condition. Verify no cracks or corrosion, especially at collar and gusset
joints and in weld areas at bottom of struts. Torque-check strut-to-skid-tube bolts.
Verify security.
Cross Tubes:
Inspect condition. With helicopter on level ground, verify minimum tail skid height
per § 32-20. Verify no cracks, corrosion, or fretting at elbows. Verify security of
(clear plastic) rain caps; if rain cap is loose or damaged, verify no internal corrosion.
(Note that one vent hole per cross tube is located near left or right end of tube to
prevent pressurization.)
Landing Gear Attach Points:
Inspect condition. Verify no buckling, cracks, fretting, or loose fasteners. Inspect
mounts and verify no loose swages or worn bearings.
Fasteners & Torque Stripes:
Inspect condition. Verify proper installation and security of fasteners. Renew
deteriorated torque stripes per Figure 5-1.
D679 Cylinder assembly (Pop-out floats; if installed):
Inspect condition. Verify security. Verify pressure gage indicates correct pressure
for ambient temperature; refer to placard on cylinder for limits.
Inflation manifold (Pop-out floats; if installed):
Inspect condition. Verify no chafing or pinching of hoses, especially where hoses
pass though structure.
Float assemblies (Pop-out floats; if installed):
Inspect condition of stowed floats. Verify no holes, cuts, tears, abrasion through
or unraveling of, float covers. If cover damage is found, inflate and inspect floats
per § 32-64. Annually apply A257-7 dry-film lubricant to float cover snap mating
surfaces. Verify snaps and hook-and-loop fasteners are properly secured. Verify
float-to-skid attachment security.
JUL 2020 Chapter 5 Inspections Page 5.35
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