What was found
(CAN) THE ROTOR RPM WAS ADJUSTED SEVERAL TIMES OVER THE COURSE OF A MONTH, AT WHICH TIME THE UNIT FAILED THE CHARACTERISTICS CHECK. UNIT REPLACED. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) THE ROTOR RPM WAS ADJUSTED SEVERAL TIMES OVER THE COURSE OF A MONTH, AT WHICH TIME THE UNIT FAILED THE CHARACTERISTICS CHECK. UNIT REPLACED. (X)