As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TIME OVERHAUL OF THESE PROPS, THE PITCH CHANGE FORK WAS FOUND CRACKED. FAILURE OF THIS PART WOULD CAUSE ONE BLADE NOT TO BE CONTROLLED DURING PITCH CHANGE OF THE PROP AND COULD CAUSE SEVERE VIBRATION BECAUSE BLADE ANGLES WOULD NO LONGER MATCH BETWEEN BLADES.