Inspection Procedure. Refer to Eddy Current Method, paragraph 1.4.11 and Figure 4-11.
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 220.127.116.11 may be used depending primarily on the ease of accessibility and user
friendliness. If the probes are changed, steps 18.104.22.168 b. (1), (2), and (3) shall be repeated each time a change is made.
Marking and Recording of Inspection Results. Mark and record inspection results as required by paragraph
Backup Method. None required.
System Securing. The main landing gear cross tube, if removed, requires installation in accordance with the
applicable technical manuals listed in Table 1-1.
ROTOR SUPPORT MIXER ASSEMBLY AND MOUNTING SURFACES (MT).
Description (Figure 4-1. Index No. 12). The rotor support mixer assemblies are located on the main rotor
Defects. This inspection is used to verify crack indications found visually on the rotor support mixer assembly
and mounting surfaces. No cracks are allowed.
Primary Method. Magnetic Particle.
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.