5-45 100-Hour / Annual Maintenance and Inspection [6 of 26 Pages]
HORIZONTAL CONTROL TUNNEL (Front seats; continued)
Pitot & Static Lines & Drains:
Inspect pitot and static lines for obstructions, cracking, chafing, pinching, or kinking.
Remove drain plugs from tee fittings in each line and clear any moisture from system.
Install drain plugs. Verify integrity of pitot and static line connections. Verify line security.
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.
Antennas:
Inspect condition. Verify no cracks where antennas mount to cowling. Verify security.
Close & Secure:
Verify foreign objects are removed. Verify equipment security. Verify cleanliness of
interior and of inspection and access covers and cowlings. Connect ELT (if installed)
wiring at connectors and anti-ice switch wiring terminals under cyclic box cover.
Connect antenna leads and ground wires (if installed). Install covers and cowlings
removed in preceding steps. Verify security. Verify security of removable and
adjustable controls. Fasten cyclic, collective, and removable collective boot snaps.
HORIZONTAL CONTROL TUNNEL (Aft seats)
Covers:
Inspect condition. Verify marking legibility.
Antenna Wiring & Connectors:
Inspect condition. Verify no loose, chafed, frayed, or broken wires. Verify no
damaged connectors. Verify neatness, proper routing and installation, and security.
Cyclic Yoke:
Inspect condition. Verify no cracks, corrosion, or fretting. Inspect spherical bearings
per § 5-33. Verify proper installation, security, and operating clearance.
Cyclic Fork:
Inspect condition. Verify no nicks, scratches, dents, cracks, or corrosion. Inspect rod
end bearings per § 5-33. Verify proper installation, security, and operating clearance.
Cyclic Horizontal Torque Tube:
Examine accessible portion with inspection light and mirror. Verify no nicks, scratches,
dents, cracks, or corrosion. Verify no cracks around reinforcement blocks on both
ends of torque tube. Verify proper installation, security, and operating clearance.
Horizontal 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.
Page 5.18 Chapter 5 Inspections MAY 2015
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