TM 1-1520-253-23
4.8.3.6
Inspection Procedure.
a. Position film and desired nameplate data for exposure number 1.
b. Position X-ray tubehead for exposure number 1.
c.
Set X-ray unit to the values given in the Radiographic Inspection Data chart for exposure number 1.
d. Make exposure number 1.
e. Remove exposed film.
f.
Repeat inspection procedure (steps a. through e. above) for each exposure.
g. Process and interpret film for defects as noted in paragraph 4.8.3.2 and as shown in Figure 4-8.
4.8.3.7
Marking and Recording of Inspection Results. Mark and record the inspection results as necessary per
4.8.4
Backup Method. None required.
4.8.5 System Securing. The pod shall be cleaned as necessary. Refer to Post Cleaning and Restoration of Part or
Area After NDI, paragraph 1.4.6.1. The pod and/or bladder, if removed, requires installation in accordance with the
applicable technical manuals listed in Table 1-1. Secure all access panels that were used.
4.9.1 Description (Figure 4-1, Index No.9). This inspection is applicable to the spiroid pinion, spiroid gear, and gear
shaft contained in the rescue hatch lower door gearbox assembly.
4.9.2
Defects. Defects may occur anywhere on the surface of the parts listed above. No cracks are allowed.
4.9.3
Primary Method. Magnetic Particle.
4.9.3.1
NDI Equipment and Materials. (Refer to Appendix B.)
a. Magnetic Particle Inspection Probe/Yoke
b. Magnetometer
c.
Black Light
d. Fluorescent Magnetic Particles
e. Consumable Materials, refer to Table 1-8
f.
Aircraft Marking Pencil, refer to Table 1-8
NOTE
Hand-held magnetic coil may be used. Refer to paragraph 1.4.8.1.2 and Figure 1-6.
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