What was found
PROPELLER SYNCHRONIZATION INOPERABLE. PROPELLER SYNCHRONIZATION ACTUATOR NOT RETURNING THE PROPELLER GOVERNOR INPUT DRIVE TO THE CENTER WHEN PROPELLER SYNC WAS SWITCHED OFF.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PROPELLER SYNCHRONIZATION INOPERABLE. PROPELLER SYNCHRONIZATION ACTUATOR NOT RETURNING THE PROPELLER GOVERNOR INPUT DRIVE TO THE CENTER WHEN PROPELLER SYNC WAS SWITCHED OFF.