What was found
TOOK OFF PAJN FOR PANC ABOUT 1823 LCL. WHILE ON A 6 MILE FINAL EXTENDED THE LANDING GEAR AND FAILED TO GET A L MAIN LANDING GEAR INDICATION ON THE LANDING GEAR ANNUNCIATOR. CONTINUED INBOUND & TOLD TOWER WOULD LIKE THEM TO LOOK AT THE LT MAIN GEAR ON A LOW PASS AND WOULD JOIN THE DOWNWIND AND RETURN FOR LANDING AFTER COMPLETING A CHECKLIST. WHEN ON APPROXIMATELY 2 MILE FINAL, L ANNUNCIATION ILLUMINATED. TOWER NOTED NO ANOMALIES ON PASS BY. OPTED TO LEAVE GEAR DOWN ON THE GO-AGROUND, AFTER NOW HAVING 3 GREEN INDICATIONS. JOINED THE DOWNWIND & COMPLETED THE CHECKLIST. I OPTED TO COMPLETE THE MANUAL EXTENSION CHECKLIST FOR NO GREEN ANNUNCIATION. DECLARED AN EMERGENCY WITH THE TOWER AND LANDED UNEVENTFULLY.