PILOT/COPILOT CYCLIC AND COLLECTIVE STICK SOCKET (ET)

TM-1-1520-265-23 H-60 Helicopter Series Manual
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TM 1-1520-265-23 a. Place probe on a good area in the inspection location and null. Adjust phase as required to obtain horizontal lift- off. b. Inspect the part. c. Any signal similar to the notches in the test block are cause for rejection. NOTE Either probe identified in paragraph 6.6.3.1 may be used depending primarily on the ease of accessibility and user friendliness. If the probes are changed, steps 6.6.3.5 b. (1), (2), and (3) shall be repeated each time a change is made. 6.6.3.7 Marking and Recording of Inspection Results. Mark and record inspection results as required by paragraph 1.3. 6.6.4 Backup Method. Fluorescent Penetrant, refer to paragraph 1.4.7. 6.6.5 System Securing. The pedal adjuster arms and link, if removed, require installation in accordance with the applicable technical manuals listed in Table 1-1. 6.7 PILOT/COPILOT CYCLIC AND COLLECTIVE STICK SOCKET (ET). 6.7.1 Description (Figure 6-1. Index No. 7). The pilot/copilot cyclic and collective stick socket are located at the base of the cyclic and collective stick assemblies. The sockets permit the movement of the cyclic and collective stick assemblies. 6.7.2 Defects. Defects may occur anywhere on the surface of the pilot/copilot cyclic and collective stick socket. No cracks are allowed. 6.7.3 Primary Method. Eddy Current. 6.7.3.1 NDI Equipment and Materials. (Refer to Appendix B.) a. Eddy Current Inspection Unit b. Probe, straight, shielded surface, 100 KHz-500 KHz c. Probe, right angle, shielded surface, 100 KHz-500 KHz, 90° 1/2 inch drop d. Cable Assembly e. Reference Block, three-notched aluminum (0.008, 0.020, 0.040 EDM notches) f. Teflon Tape, refer to Table 1-8 g. Aircraft Marking Pencil, refer to Table 1-8 6.7.3.2 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 pilot/copilot cyclic and collective stick socket shall be removed in accordance with the applicable technical manuals listed in Table 1-1. 6.7.3.3 Access. Access is gained through the cockpit area and unzipping the boot at the base of the cyclic/collective stick assemblies. 6-12

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