For you guys using wood props. Or ANY prop for that matter.

People need to check their prop bolts for the correct torque at least once per flying day.

I saw a prop shaft get sheared off in the threaded area of the shaft this past weekend. The make of the engine does not matter since the issue is applicable to all. When this happens it IS NOT a warranty or defective engine issue. It is one where the propeller, spinner, or both were able to move fore and aft on the prop shaft during rotational loads. It could also cause a fiberglass or carbon spinner to crack and/or shatter.

Not to mention that it ruins a flying day or longer while replacing a crankshaft, or replacing the entire plane, it is a very large safety issue for anyone within the area the propeller and spinner can be thrown to. So do a little pre-flight work and check your prop bolts.

Pat Roy