TM 1-1520-265-235-18 Change 2Figure 5-9. Crotch Assembly and Segment Ring5.10 FORWARD SUPPORT TUBE (PT).5.10.1 Description(Figure5-1,IndexNo.10). The forward support tube attaches to the engine swirlframe. The output shaft is installed through restrainer rings fastened inside the tube.5.10.2 Defects. This inspection is used to confirm suspect crack indications detected visuallythrough the casting. No cracks are allowed.5.10.3 PrimaryMethod. Flourescent Penetrant.5.10.3.1 NDI Equipment and Materials. (Refer to Appendix B.)a. Flourescent Penetrant Inspection Kitb. Black Light UV Kit5.10.3.2 Preparation of Helicopter. The helicopter shall be prepared for safe ground maintenanceand the engine removed in accordance with the applicable technical manuals listed in Table 1-1.5.10.3.3 Access. Not applicable.5.10.3.4 Preparation of Part. The part shall be thoroughly cleaned. Refer to Preparation of Part orArea for NDI, paragraph 1.4.4.5.10.3.5 Deleted.
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