As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING BENCH TEST OF ACTUATOR, SERVO VALVE DRAIN CHAMBER SCREW PLUG, PN EE3-2042, REMOVED TO CHECK FOR OIL LEAKAGE. DRAIN CHAMBER ABOVE SERVO VALVE AND INSIDE OF SCREW PLUG FOUND FULL OF A HEAVY, GREASE-LIKE CONTAMINATION. SUSPSECT FORMED FOR WATER AND OIL COLLECTING IN CHAMBER FOR A LONG PERIOD OF TIME.