As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSTALLED NEW SEAL AFTER INSPECTION OF UNIT. STARTED LEAKING OIL AFTER VERY LITTLE TIME IN SERVICE. SUBMITTER STATED BELL SEEMS TO HAVE CHANGED MANUFACTURERS. SEAL IS GARLOCK TYPE, BUT BLACK INSTEAD OF USUAL ORANGE COLOR. APPEARS TO BE OF DIFFERENT MATERIAL, HARDER THAN PREVIOUS STYLE.