TM 1-1520-265-232-54 Change 22.23 TAIL ROTOR BLADE (FLUID) (RT).2.23.1 Description(Figure2-1,IndexNo.23). The tail rotor blade is built around two graphitecomposite spars running from tip-to-tip and crossing each other at the center to form the four blades.The blade spars are covered with cross ply fiberglass to form the airfoil shape.2.23.2 Defects. Fluid in the honeycomb core.2.23.3 PrimaryMethod. Radiography.WARNINGRadiation HazardAssure compliance with all applicable safety precautions set forth in TM1-1500-335-23 (Nondestructive Inspection Methods manual) listed in Table 1-1. Ahazard associated with exposure to ionizing radiation is that serious damage can beinflicted without pain, burning, or other sense of discomfort during the exposureperiod. Radiation protection shall be utilized in accordance with AR40-14/DLAR1000.28.2.23.3.1 NDI Equipment and Materials. (Refer to Appendix B.)a. X-ray Unitb. Tripod, X-ray tubehead standc. Film Processord. Film, Ready Pack 14 inch x 17 inche. Marking Material, refer to Table 1-8.2.23.3.2 Preparation of Helicopter. The helicopter shall be prepared for safe ground maintenance.Partial inspection for cause (visual indications, sites of mechanical damage, corrosion, etc.) maybe performed on all exposed surfaces of the installed part using this procedure. If required, the tailrotor blade shall be removed in accordance with applicable technical manuals listed in Table 1-1.2.23.3.3 Access. Not applicable.WARNINGMaintenance Platforms/WorkstandsUse only appropriate platforms, workstands, or other approved locally procuredstands and restraint equipment when working above 10 feet on helicopters in anontactical environment. Otherwise, personnel injury could result from accidentalfalls.2.23.3.4 Preparation of Part. The rotor blade shall be thoroughly cleaned. Refer to Preparationof Part or Area for NDI, paragraph 1.4.4.
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