As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER PUTTING GEAR IN DOWN POSITION 3 RED LIGHTS REMAINED ILLUMINATED. HANDLE WAS DOWN AND IN. WENT AROUND. PERFORMED QRH PROCEDURE. LANDING GEAR EXTENDED NORMALLY ON SECOND ATTEMPT. PERFORMED MLG EXTENSION AND RETRACTION TEST REF M/M 32-32-00 NUMEROUS TIMES. COULD NOT DUPLICATE PROBLEM WITH NO FAULTS OR DEFECTS NOTED. A/C OK TO CONTINUE.