Figure 3-23. Tail Rotor Gearbox Shouldered Shaft
Backup Method. None required.
System Securing. Clean the tail rotor gearbox shouldered shaft thoroughly to remove all residual magnetic
particle media. Refer to Post Cleaning and Restoration of Part or Area After NDI, paragraph 1.4.16. The tail rotor
gearbox shouldered shaft requires installation in accordance with the.
applicable technical manuals listed in Table 1-1.
TAIL ROTOR GEARBOX RETAINERS (ET).
Description (Figure 3-1. Index No. 24).
The tail rotor gearbox retainers maintain the pinion gear and bearings
within the tail rotor gearbox.
Defects. This inspection is used to verify crack indications found visually on the tail rotor gearbox retainers. No
cracks are allowed.
Primary Method. Eddy Current.
NDI Equipment and Materials. (Refer to Appendix B.)
Eddy Current Inspection Unit
Probe, straight, shielded surface, 100 KHz-500 KHz
Probe, right angle, shielded surface, 100 KHz-500 KHz, 90
1/2 inch drop