TM 1-1520-253-23
NOTE
Either probe identified in paragraph 3.5.3.1 may be used depending primarily on
the ease of accessibility and user friendliness. If the probes are changed, steps
3.5.3.5 b. (1), (2), and (3) shall be repeated each time a change is made.
3.5.3.7
Marking and Recording of Inspection Results. Mark and record as required by paragraph 1.3.
3.5.4
Backup Method. Fluorescent Penetrant, refer to paragraph 1.4.7.
3.5.5 System Securing. If removed, install the aft driveshafting in accordance with the applicable technical manual
listed in Table 1-1. Secure the aft driveshafting baffle.
ENGINE DRIVESHAFT (TWO PIECE) (ET).
3.6.1 Description (Figure 3-1. Index No. 6). The two piece engine driveshaft is an aluminum tube with a three-
cornered aluminum adapter riveted to each end.
3.6.2 Defects. Defects may occur anywhere on the surface of the driveshaft. All dents, scratches, nicks, or gouges
shall be inspected to ensure they do not conceal cracks. No cracks are allowed.
