As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON 27TH MARCH, 2019, #2 ENGINE FAILED TO DECELERATE. MAINTENANCE SUSPECTED BETA ENABLE SWITCH FAILED ON PROPELLER CONTROL UNIT (PCU). ENGINE HARNESS AND PCU WERE REPLACED, SYSTEM CHECKED PER AMM, NFF. AIRCRAFT RETURNED TO SERVICE. (TC# 20190830007)