What was found
DURING PREFLIGHT, DISCOVERED THAT THE CARBON BLOCK WHICH RIDES IN THE CHANNEL OF THE PROPELLER BETA FEEDBACK COLLAR WAS DAMAGED BY A SMALL FAILURE OF THE SECTION OF THE FEEDBACK COLLAR CHANNEL WALL DIRECTLY UNDER ONE OF THE MOUNTING STUDS. ONE POSSIBILTY THAT HAS BEEN SEEN PREVIOUSLY, IF TOO MUCH THREADLOCKER IS USED OR IF PREVIOUS RESIDUAL THREADLOCKER WAS NOT REMOVED, HYDRAULIC PRESSURE COULD RESULT IN DAMAGE TO THE COLLAR WALL WHEN STUD IS INSTALLED. IT SHOULD BE NOTED THAT THIS PROPELLER WAS IN STORAGE.