6.10 FLIGHT CONTROL RODS, CONNECTING LINKS, ROD ENDS, CLEVISES, LEVERS, AND
ATTACHING PARTS (ET).
6.10.1 Description (Figure 6-1, Index No. 10).
Flight control rods, connecting links, rod ends, clevises, levers, and
attaching parts are found in various locations in the helicopter flight controls. This is a generic inspection for all such
6.10.2 Defects. This inspection is used to verify crack indications found visually on the flight control rods, connecting
links, rod ends, devises, levers, and attaching parts. No cracks are allowed.
6.10.3 Primary Method. Eddy Current.
220.127.116.11 NDI Equipment and Materials. (Refer to Appendix B.)
Eddy Current Inspection Unit
Probe, straight, shielded surface, 100 KHz-500 KHz
Probe, right angle, shielded surface, 100 KHz-500 KHz, 90
° 1/2 inch drop
Reference Block, three-notched aluminum (0.008, 0.020, and 0.040 EDM notches)
Teflon Tape, refer to Table 1-8
Aircraft Marking Pencil, refer to Table 1-8
18.104.22.168 Preparation of Helicopter. The helicopter shall be prepared for safe ground maintenance. A partial inspection
for cause (visual indications, sites of mechanical damage, corrosion, etc.) may be performed on all exposed surfaces of
the installed part using this procedure. If required, the flight control rods, connecting links, rod ends, clevises, levers, and
attaching parts shall be removed in accordance with the applicable technical manuals listed in Table 1-1.
22.214.171.124 Access. Accessibility of the flight control rods, connecting links, rod ends, clevises, levers, and attaching parts
varies considerably. Refer to Figure 1-4 and Table 1-2 to locate applicable access provisions.
126.96.36.199 Preparation of Part. The part shall be thoroughly cleaned. Refer to Preparation of Part or Area for NDI,
188.8.131.52 NDI Equipment Settings.
Make the following initial settings on the Eddy Current Inspection Unit, NORTEC-19e
- 200 KHz