As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) LH ENGINE HAD ECU A FAIL INDICATION ON TAKEOFF, APPROX. 2 MINUTES LATER, ECU B FAIL INDICATION ILLUMINATED. SUBSEQUENT PROPELLER SELF TEST FAILED. AIRCRAFT INSPECTED AND FOUND MULTIPLE PROPELLER GOVERNOR FAILURE CODES AND LATCHED SELF TEST FAILURE CODE. PROPELLER GOVERNOR REPLACED WITH NEW. (TC# 20190529019)