What was found
AFTER LANDING ON TAXI BACK TO RAMP, LIGHT GEAR INDICATED UNSAFE AND GEAR DOORS SEQUENCED TO OPEN. AIRCRAFT STOPPED AND SHUT DOWN. VISUAL INSPECTION VERIFIED GEAR WAS DOWN AND LOCKED. UPON POWER-UP, GEAR DOORS SEQUENCED CLOSED, RIGHT GEAR INDICATED SAFE AGAIN. WITHIN 5 MINUTES, RIGHT GEAR INDICATED UNSAFE AGAIN, DOORS SEQUENCED OPEN. POWERED DOWN AND BACK ON AND GEAR INDICATED SAFE AGAIN, DOORS SEQUENCED CLOSED. ALSO, NOTICED THE FAIL SEQUENCE COULD BE INITIATED BY ACTUATING STROBE LIGHTS, CROSSFEED OR LANDING LIGHTS. REPLACED PROXIMITY SWITCH.