Place probe on a good area in the inspection location and null. Adjust phase as required to obtain horizontal lift-
Inspect the part.
Any signal similar to the notches in the test block is cause for rejection.
Either probe identified in paragraph 188.8.131.52 may be used depending primarily on the ease of accessibility
and user friendliness. If the probes are changed, steps 184.108.40.206 b. (1), (2), and (3) shall be repeated each
time a change is made.
220.127.116.11 Marking and Recording of Inspection Results. Mark and record the inspection results as required by paragraph
6.3.4 Backup Method. Not applicable.
6.3.5 System Securing. The main rotor swashplate shoulder pin requires installation in accordance with the applicable
technical manuals listed in Table 1-1.
6.4 MAIN ROTOR LINK BARRELS (MT).
6.4.1 Description (Figure 6-1. Index No. 4)
. The main rotor pitch link barrel is the major center part of the main rotor
pitch link into which the two rod's ends mount.
6.4.2 Defects. Defects can occur anywhere on the surface of the part. No cracks are allowed.
6.4.3 Primary Method. Magnetic Particle.
18.104.22.168 NDI Equipment and Materials. (Refer to Appendix B.)
Magnetic Particle Inspection Probe/Yoke
Fluorescent Magnetic Particles, refer to Table 1-8
Consumable Materials, refer to Table 1-8
Aircraft Marking Pencil, refer to Table 1-8
Hand-held magnetic coil may be used. Refer to paragraph 22.214.171.124.2 and Figure 1-6.
126.96.36.199 Preparation of Helicopter. The helicopter shall be prepared for safe ground maintenance and the pitch link
removed and disassembled in accordance with the applicable technical manuals listed in Table 1-1.
188.8.131.52 Access. Not applicable.