What was found
FLIGHT CREW INABILITY TO ADJUST RPM INFLIGHT VIA PROPELLER SPEED CONTROL. PROPELLER SPEED CONTROL COULD BE ADJUSTED ON THE GROUND DURING RUN UP.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT CREW INABILITY TO ADJUST RPM INFLIGHT VIA PROPELLER SPEED CONTROL. PROPELLER SPEED CONTROL COULD BE ADJUSTED ON THE GROUND DURING RUN UP.