As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TEFLON COAT MISSING ON INNER RACES. SERIAL NUMBERS REMOVED ARE ZN83794, ZN83795, ZN72048, ZN83796. SENT TO BELL HELICOPTER TEXTRON...POWER BY HOUR AIRCRAFT. PARTS AND LABOR WILL BE INVOICED...PM#0596. SEE MMIR# HEEA0008821 THROUGH HEEA0008826 FOR ALL PARTS REPLACED.