As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE PROPELLER WOULD FLUCTUATE +/- 400 FT/LBS IN TORQUE DURING CLIMB AND DESCENT. ORIGINALLY THE BETA CABLE CLEVIS AND JAM NUT WERE ADJUSTED AND BETA ARM AND BLOCK REPLACED. WHEN THE EVENT REOCCURRED THE PROP GOVERNOR WAS REPLACED WITH NO RECURRENCE SINCE.