As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEFECT DISCOVERED DURING 1,750 HOURLY INSPECTION OF ENGINE MOUNTS. WHILE BORESCOPING INSIDE OF TUBE, CORROSION WAS FOUND THAT EXCEEDED LIMITS. INSIDE OF TUBE ASSEMBLY CORRODED AND PITTED. SUBMITTER SUGGESTED USING BETTER CORROSION PREVENTATIVE METHODS.