As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT MLG DID NOT INDICATE DOWN AND LOCKED WITH GREEN LIGHT. EMERGENCY HAND PUMP WAS USED TO NO AVAIL. ON FINAL APPROACH ( 400 FEET AGL) GREEN LIGHT CAME ON AND INDICATED DOWN AND LOCKED ACFT WAS LANDED WITHOUT PROBLEMS. SWITCH OPERATION WAS NORMAL. COULD NOT DETERMINED THE CAUSE. RT LANDING GEAR ACTUATOR WAS BENCH CHECK, HYD POWERPACK WAS BENCH CHECKED. LANDING GEAR RIG WAS CHECKED. GEAR WAS CYCLED AT LEAST 5 FAULT FREE TIMES.