As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT NR 3928 WHILE ON GROUND IN DCA NOTICED THE NR 2 HYDRAULIC QUANTITY INDICATED 1.2 QUARTS. PRIOR TO AIRCRAFT PARKING THE HYDRAULIC ISOLATION VALVE ACTIVATED. MAINTENANCE REPLACED THE RIGHT HAND NOSE LANDING GEAR DRAG STRUT ACTUATOR LINE, SERVICED SYSTEM AND GROUND OPERATIONAL CHECKED. SYSTEM CHECK GOOD, AIRCRAFT RETURNED TO SERVICE.