What was found
AIR TURNBACK APPROXIMATELY 20 MINUTES AFTER TAKEOFF, NOTICED B-SYSTEM HYDRAULIC SLOWLY MOVING DOWN PASSED HALF FULL. REMOVED AND REPLACED PLUG AND O-RING ON NR 3 SLAT ACTUATOR BODY. OPS AND LEAK CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR TURNBACK APPROXIMATELY 20 MINUTES AFTER TAKEOFF, NOTICED B-SYSTEM HYDRAULIC SLOWLY MOVING DOWN PASSED HALF FULL. REMOVED AND REPLACED PLUG AND O-RING ON NR 3 SLAT ACTUATOR BODY. OPS AND LEAK CHECK GOOD.