As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PROP WOULD NOT STAY IN LATCH. FEATHER ON SHUT DOWN AND WOULD NOT LATCH MANUALLY. INSPECTION REVEALED A3205 LATCH SCREW HAD STRIPPED OUT OF A2491-3 PITCH CHANGE ROD. THREADS IN ROD WERE GONE AND SCREW THREADS WERE DAMAGED. ROD HAD .004 INCH RUNOUT - SUSPECT POSSIBLE PREVIOUS ACCIDENT.