What was found
FLT NR 0299 - MIA - WHEN LANDING GEAR WAS EXTENDED ON APPROACH TO MIA, ALL THREE GREEN GEAR LIGHTS AND ALL THREE RED GEAR UNSAFE LIGHTS ILLUMINATED. THE GEAR WAS CYCLED AND CREW RECEIVED THREE GREEN GEAR INDICATION LIGHTS WITH NO RED LIGHTS. THE GEAR HANDLE HAD BEEN STICKY AND DID NOT GO INTO DETENT ON FIRST ATTEMPT. MAINTENANCE LUBRICATED THE GEAR HANDLE. A LANDING GEAR OPERATIONAL CHECK WAS PERFORMED IAW MM 32-30-00 AND OPERATION WAS GOOD. (M)