What was found
LEFT CIRCUIT BREAKER NR 38 GEAR WARNING POPPED. RESET CIRCUIT BREAKER, RECEIVED 3 GREEN, DOWN AND LOCKED INDICATION. AT 500 FEET AFL (TOO LOW GEAR) WARNING. DID GO AROUND AND LANDED. RIGHT MAIN LANDING GEAR DOWN LIMIT SWITCH MALFUNCTIONED, INTERNAL SHORT CIRCUIT. REMOVED AND REPLACED THE SWITCH, PLACED LANDING GEAR ON DEFERRED MAINTENANCE ITEM LIST PER MEL FOR RETRACTION CHECK.