As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE PERFORMANCE OF AN ANNUAL AIRFRAME INSPECTION AND SUPPLEMENTAL 6 YEAR INSPECTION OF THE MAIN ROTOR MAST. DURING INSPECTION OF THE MAIN ROTOR MAST (REMOVED) IT WAS NOTED THAT THERE WAS A CRACK ON THE LOWER PORTION OF THE MAST JUST ABOVE WHERE IT ATTACHES TO THE EPICYCLIC GEAR ASSEMBLY. THIS WAS CONFIRMED BY NDT AS WELL. PREVIOUS AC HISTORY, ON 25 NOVEMBER 2019 AT AC TT 213.0 THE AIRCRAFT UNDERWENT AN INSPECTION FOR A HARD LANDING IAW MSM 05-50-00, 6-5B AND 05-50-00, 6-25.