As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEVERAL CRACK-LIKE INDICATIONS WERE FOUND ON THE GEAR TEETH IN THE MAIN ROTOR TRUNNION. THESE INDICATIONS MEASURED ~3/8" LONG IN THE AREA OF INTEREST. CRACKS WERE FOUND WITH FLUORESCENT MAGNETIC PARTICLE TESTING. INSPECTION WAS PERFORMED PER ASTM E1444 AS REQUESTED BY CLIENT.