As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE COURSE OF THIS TEST CAMPAIGN, AN AIRSPEED ANOMALY WAS OBSERVED DURING THE EXECUTION OF SOME AUTOROTATION TEST CONDITIONS.THE PILOT SIDE DISPLAY EXHIBITED AN ERRATIC REDUCTION IN AIRSPEED RELATIVE TO THE CO-PILOT AND STANDBY DISPLAYS.