As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOTS REPORTED THAT DURING GEAR EXTENSION THE LEFT MAIN GEAR WAS FLICKERING ON AND OFF AND REC IN TRANSIT LIGHTS WERE ILLUMINATED. THEY RECYCYLED THE LANDING GEAR AND STILL HAD NO GREEN LIGHTS ON THE LEFT MAIN GEAR. THEY PERFORMED A MANUAL GEAR EXTENSION AND NO GREEN LIGHTS CAME ON. MAINTENANCE REMOVED AND REPLACED THE LEFT HAND MAIN LANDING GEAR ACTUATOR I.A.W. BEECH 1900D MM 32-10-00. RIG AND OPERATIONAL CHECKS WERE GOOD.