As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLIGHT THE COMPOSITE PROPELLER SPINNER, PN 1054-1 SEPARATED OR BROKE APART AND IMPACTED 1 BLADE OF THE WOODEN PROPELLER, MODEL 6272. THE PROPELLER SUSTAINED DAMAGE AND PARTIAL SEPARATION OF THE OUTER .3333 OF THE BLADE. AN UNEVENTFUL EMERGENCY LAND WAS ACCOMPLISHED. INVESTIGATION REVEALED THAT ALL SPINNER BULKHEAD SCREWS HAD REMAINING COMPOSITE MATERIAL EXCEPT FOR 1. THE SPINNER WAS NOT RECOVERED.