TM 1-1520-265-23
2-30
Figure 2-14 Pitch Control Rods
2.14.3.7 Marking and Recording of Inspection Results. Mark and record inspection results as
required by paragraph 1.3.
2.14.4 Backup Method. Fluorescent Penetrant, refer to paragraph 1.4.7.
2.14.5 System Securing. The pitch control rods, if removed, require installation in accordance with
the applicable technical manuals listed in Table 1-1.
2.15 ROTATING SWASHPLATE (ET).
2.15.1 Description (Figure 2-1, Index No. 15). The swashplate has stationary and rotating discs
joined by a bearing. It transmits flight control movement to the main rotor head through the four pitch
control rods. The swashplate is permitted to slide on the main rotor shaft and tilt
2.15.2 Defects. Defects may occur anywhere on the surface of the swashplate. No cracks are
allowed.
2.15.3 Primary Method. Eddy Current.
2.15.3.1 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
