TM 1-1520-265-23
Change 2
5-29
Figure 5-17. Engine Load Demand Control Cable Support
5.18 ENGINE AIR INLET “V” BAND CLAMP (PT).
5.18.1 Description (Figure 5-1, Index No. 18). The air inlet flange is integral to air inlet. The engine
(compressor case) flange is integral to the compressor case. The “V” band clamp holds the air inlet
to the compressor case.
5.18.2 Defects. This inspection is used to verify crack indications found visually in the “V” band
clamp. No cracks are allowed.
5.18.3 Primary Method. Fluorescent Penetrant.
5.18.3.1 NDI Equipment and Materials. (Refer to Appendix B.) Inspection equipment is listed in
Table 1-7. AMS 2644 level 3 penetrant materials shall be selected from the approved list in Table
1-8. Parts requiring flourescent penetrant inspection shall be cleaned prior to inspection with
n--Propyl Bromide (vapor degreasing only)(Table 1--8), DS--108 (Table 1--8), Electron (Table 1--8),
Positron (Table 1--8). DS--108, Electron, Positron must be followed by an acetone (Table 1--8) rinse
or wipe: or drying until there is no visible solvent residue left on parts.
5.18.3.2 Preparation of Helicopter. The helicopter shall be prepared for safe ground maintenance.
A partial inspection for cause (visual indications, sites of mechanical damage, corrosion, etc.) may
be performed on all exposed surfaces of the installed part using this procedure. If required, the
flanges shall be removed in accordance with the applicable technical manuals listed in Table 1-1.
5.18.3.3 Access. Access is through engine cowl (Figure 1-4, items 3T-7 or 4T-8).
5.18.3.4 Preparation of Part. Refer to Preparation of Part or Area for NDI, paragraph 1.4.4.
