As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING INSTALL OF HOT SECTION INSPECTION, AME NOTICED THAT THE PROP BETA RING HAD A CRACK ON THE AFT FACE, ON FURTHER INSPECTION ANOTHER CRACK WAS FOUND. BETA RING WAS REMOVED AND A SERVICEABLE RING INSTALLED. AT THIS TIME IT WAS NOTED THAT THE INSTALL PROCEDURE IN MANUAL DOES NOT MAKE IT VERY CLEAR THAT THE BETA VALVE IS NOT TO BE TOUCHED AFTER INITAL SETUP.