As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING NR 2 HYD SYS SERVICE BOTH INDICATORS MOVED TO .5 QT AND STOPPED WHILE SYS CONTINUED TO ACCEPT APPROX 3.5 QTS OF FLUID UNTIL SPILLED INTO OVER SPILL CANISTER. FERRY TO MDT. DURING TAXI OUT CREW REPORTED QTY GAUGE CORRECTED AFTER OPS OF FLT CONTROL SYS AND FOR THE DURATION OF FLT. GND RAN ACFT AND OPERATED VARIOUS FLT CONTROL SYSTEMS. BLED NR 2 HYD SYS AND CLEANED C/P AT QTY IND IN NACELLE. OPS GOOD.