As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH THE INTO LIH THE CREW DECLARED AN EMERGENCY DUE TO THE RT MAIN GEAR WOULD NOT EXTEND, ALTERNATE GEAR EXTENSION USED WITH SUCCESS. ON APPROACH LT HYD QTY ADVISORY LIGHT. FOUND RT MLG TRUCK POSITION HYDRAULIC LINE LEAKING. INSTALLED 2 TEMPORARY LINES PER AMM 20-10-10. SERVICED HYDRAULIC SYSTEM. PERFORMED FLT CONTROL CHECK AND VERIFIED GEAR HANDLE OPERATION. NO LEAKS NOTED. VERIFICATION FLIGHT PERFORMED.