nut for security. Check main landing gear strut, landing  gear shock absorber strut, and shock absorber operation.  [Figure 5-51]  Inspect all landing gear strut attachments to  the airframe. Inspect the other side’s rear landing gear by  repeating the above procedure in reverse. Check all cowling  for secure attachment and cracks.  [Figure 5-52] Figure 5-51. Checking the rear landing gear struts. Figure 5-53. Checking the security of the engine to the airframe.  Figure 5-52. Checking the cowl attachment for security and  cracks. Figure 5-54. Checking the security and condition of the fuel lines  and fuel filter condition. •  Inspect fuel pickup and fuel line running up to fuel  filter. While inspecting all fuel lines, jiggle all fi ttings  and connections to ensure they are secure.  •  Inspect fuel filter and continue to follow fuel line up  to fuel pump.  •  Inspect the security and condition of fuel pump.  •  Inspect fuel lines up to carburetors.  [Figure 5-54]  Powerplant Inspection Induction System Fuel System Inspect engine attachment to the carriage for security and  cracks. In addition to looking at the bolts and mounts,  shake the propeller, as shown in  Figure 5-53,  to provide a  secure check of the propeller, gearbox, engine, and engine  attachment to the carriage. •  Inspect fuel tank attachment and condition.  •  Inspect fuel vent system, and ensure the fuel supply  line is open (some WSC aircraft have fuel shut off  valves outside the fuel tank).  •  Inspect carburetors, including float bowl attachment  and rubber bushing from carburetors into engine.  •  Inspect fuel lines from float bowls to carburetor inlet.  •  Inspect air inlet filter to ensure it is clean and secure.  [Figure 5-55] 5-19