As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GREASE FITTING ON MAIN ROTOR PITCH LINK UNIVERSAL BEARING WOULD NOT ACCEPT GREASE BUT WOULD PURGE GREASE. UPON FURTHER INVESTIGATION, THE FITTING APPEARS TO HAVE BEEN ASSEMBLED INCORRECTLY WITH THE STOPPER BALL ON THE INSIDE OF FITTING WITH THE SPRING PRESSING THE BALL TOWARDS BEARING, PREVENTING GREASE FROM FLOWING INTO BEARING, BUT ALLOWING GREASE TO FLOW OUT OF BEARING.