As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXPERIENCING MULTIPLE OCCURRENCES IN WHICH THE RUDDER PCU (PN 600-75101-29) HAS DEVELOPED LEAKS AROUND THE OUTPUT SHAFT DEEMING THE ACTUATORS UNSERVICABLE. CONDITION SEEMS TO MANIFEST AFTER COLD SOAKING. LEAKS ARE NORMALLY MINIMAL AND WITHIN MM LIMITS WHEN TESTED ON GROUND.