As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) - TAILROTOR GEARBOX RETENTION HARDWARE, BOLT HEAD FOUND MISSING DURING SCHEDULED MAINTENANCE. - 3 REMAINING BOLTS WERE INSPECTED WITH NO FAILURES FOUND. ALL THE TAILROTOR GEARBOX RETENTION HARDWARE WAS REPLACED WITH NEW. A 300 HOUR RETIREMENT SCHEDULE HAS BEEN ESTABLISHED FOR THE PARTS IN QUESTION.