As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED THAT ON APPROACH TO LANDING WITH LG HANDLE IN THE DOWN POSITION, ONLY NOSE & RT MAIN GEAR GREEN LIGHTS ILLUMINATED. LG RELAY CB TRIPPED, RAN ALL APPROPRIATE CHECKLISTS & LANDING GEAR MANUALLY EXTENDED NORMALLY. MX R & R THE LT MAIN ACTUATOR IAW TC 1900-3230.10, OPERATIONS & LEAK CHECKED GOOD.