As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 9284 PKB/DUJ DURING DESCENT FOR LANDING WITH POWER AT ABOUT 1,000 LB OF TORQUE LEFT PROPELLER WAS IN AND OUT OF AUTOFEATHER POWER WAS ADDED WITH NO CHANGE IN SITUATION. AUTOFEATHER WAS TURNED OFF AND NORMAL LANDED WAS CONDUCTED WITHOUT INCIDENT. REPLACED A123 PCB AND RIGGED RIGHT THROTTLE SWITCH.