As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING ROUTINE INSP OF THE (NLG) IAW TASK 3230/07 VISUAL INSP OF NLG RETRACTION ACTUATOR PART OF A1 CHECK, A HYD LEAK WAS NOTICED FROM THE ACTUATOR. FURTHER INVESTIGATION REVEALED THAT THE RING RETAINER (45) ON THE GLAND NUT (70) WAS PARTIALLY ENGAGED, REF MFG COMPONENT MM 32-30-05 ILLUSTRATED PART CATALOGUE FIG 1. THE PARTIALLY ENGAGED RING RETAINER (45) ALLOWED WASHERS (50) AND PISTON SEALS TO MOVE CAUSING THE LEAK. THE RETRACTION ACTUATOR WAS REPLACED AND TESTED SERVICEABLE.