Final answer:
The 100-hour inspection of an airplane with a push-pull tube-type control system should involve checking the amount of thread engagement on the threaded rod ends using the provided inspection hole. Adjusting the length of the rod ends for rigging purposes is not recommended.
Step-by-step explanation:
Aviation: 100-Hour Inspection of an Airplane with Push-Pull Tube-Type Control System
The correct statement concerning the 100-hour inspection of an airplane equipped with a push-pull tube-type control system is option (A). During the inspection, the threaded rod ends should be checked for the amount of thread engagement by means of the inspection hole provided. This is important to ensure that the control system remains properly connected and functional.
Thread engagement is crucial because it determines the effectiveness and strength of the connection between the threaded rod ends. By visually inspecting the amount of thread engagement through the inspection hole, any signs of wear or loosening can be identified and addressed before they lead to control issues or failure.
It is important to note that adjusting the length of the threaded rod ends for rigging purposes is not recommended because the rod ends are already properly positioned and staked during manufacturing, as stated in option C.