TM 1-1520-264-23
Figure 5-6. Air Inlet Assembly
5.7 ENGINE AIR INLET "V" BAND CLAMP (PT).
5.7.1
Description (Figure 5-1. Index No. 7)
. 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.
5.7.2
Defects. This inspection is used to verify crack indications found visually in the "V" band clamp. No cracks are
allowed.
5.7.3
Primary Method. Fluorescent Penetrant.
5.7.3.1
NDI Equipment and Materials. (Refer to Appendix B.) Inspection equipment is listed in Table 1-7. MIL-I-25135
level 3 penetrant materials shall be selected from the approved list in Table 1-8.
5.7.3.2
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.
5.7.3.3
Access. Access is through access doors (Figure 1-4, Items LN1 or RN1).
5.7.3.4
Preparation of Part. Refer to Preparation of Part or Area for NDI, paragraph 1.4.4.
5.7.3.5
Inspection Procedure. Perform fluorescent penetrant inspection. Refer to Fluorescent Penetrant Method,
paragraph 1.4.7 and Table 1-5. Inspect area of concern. See Figure 5-7.
5-13
