As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FILM OF OIL OBSERVED AROUND INSIDE OF THE SPRAGUE CLUTCH. A CALL TO REVOLUTION HELICOPTER CONFIRMED RED COLOR. INSPECTION REVEALED NO REMAINING FLUID AND A PINCHED O-RING. SEIZURE WAS IMMINENT. SUBMITTER SUGGESTED POOR QC AT ASSEMBLY AND RECOMMENDED ALL CLUTCHES BE INSPECTED FOR LEAKAGE. NO MEANS PROVIDED TO CHECK LUBRICANT QUANTITY WITHOUT DISASSEMBLY.