As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH, THE RT HYD SYSTEM QTY WENT TO ZERO. ALTERNATE GEAR EXTENSION WAS USED FOR LANDING. A/C WAS TOWED OFF RUNWAY. CONTRACT MTC FOUND THE A-PLUG IPC REF 29-10-00 FIG 01S ITEM 325 HAD BACK OFF. TIGHTENED PLUG AND SAFTIED, SERVICED RESERVIOR AND LEAK CHECKED THE PLUG. NO DAMAGE TO WHEEL WELL DOORS CAUSED BY LANDING.