As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) A ENGINEER WAS CALLED TO THE HELICOPTER DUE TO A DEFECT OF LACK OF POWER IN THE POWER ASSURANCE CHECK. THE ENGINEER CARRIED OUT A COMPRESSOR WASH STILL LACK OF POWER. THE ENGINEER REMOVED THE COMBUSTION CASE AND FOUND PART OF THE COMPRESSOR CASE HALF STATOR VANE IN THE TURBINE ASSY. THE HELICOPTER WAS GROUNDED. THE COMPRESSOR ASSY AND TURBINE ASSY WERE REPLACED DUE TO DAMAGE.