What was found
AFTER LANDING CHECKLIST WAS COMPLETED, PULLED THE LANDING GEAR HANDLE, DID NOT RESPOND (NO RED BLINKING LIGHT, NO NOISE FROM THE LANDING GEAR EXTENSION), NOTHING HAPPENED. CYCLED IT 3 TIMES WITH NO RESPONSE. THEN FLIPPED HYDRAULIC TO MANUAL, CYCLED GEAR HANDLE, STILL NOTHING. SWITCHED HYDRAULIC SWITCH BACK TO NORMAL. CYCLED GEAR HANDLE ONE MORE TIME AND THE LANDING GEAR HANDLE RESPONDED WITH LIGHTS AND ALSO HEARD THE LANDING GEAR EXTEND. REPLACED LANDING GEAR SELECTOR HANDLE. OPS CHECK IAW AMM 32-00-00, FUNCTIONAL TEST OF LANDING GEAR. TIMES AND CYCLES OF PART WERE UNKNOWN (NOT A LIFE LIMITED PART).