As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON OPERATION CHECK FLIGHT AFTER OVERHAULED ENGINE INSTALLATION, PILOT REPORTED THAT THE POWER LEVER GOT HUNG UP ON POWER REDUCTION. AN UNEVENTFUL LANDING WAS COMPLETED AND MAINTENANCE LOCATED AND CORRECTED INCORRECT (FOR THIS MODEL ENGINE) PROPELLER REVERSING HARDWARE INSTALLATION. A BOLT & SPACER (PWC PT6A-65 IPC 76-10-00, ITEMS 261 BOLT & 265 SPACER) WERE INSTALLED DURING OVERHAUL AND MIGHT HAVE CAUSED AN ISSUE IN FLIGHT.