As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLARE FOR LANDING, THE AIRCRAFT ABRUPTLY AND WITHOUT WARNING YAWED HARD RIGHT. TOUCHDOWN OCCURRED DURING THE GO-AROUND. THE PILOT NOT FLYING REPORTED THAT THE RIGHT PROP PITCH LIGHT ILLUMINATED IMMEDIATELY PRIOR TO THE EXCURSION. AFTER THE GO-AROUND, THE PROPELLERS WERE RESET TO 1500 RPM AND A POWER-ON APPROACH TO LANDING WAS ACCOMPLISHED. DURING THAT TOUCHDOWN, THE RIGHT PROP PITCH LIGHT ILLUMINATED AGAIN.