As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN)ON TAKEOFF ROLL THE #2 PROPELLER WENT INTO UNCOMMANDED AUTOFEATHER AT 90 KIAS.TAKEOFF WAS ABORTED AND AIRCRAFT RETURNED TO BLOCKS. GROUND INSPECTION REVEALED A FAULTY PROPELLER GOVERNOR WHICH WAS RE PLACED. CHECKED SERVICEABLE, AND THE AIRCRAFT RETURNED TO SERVICE.