What was found
UPON LANDING AT LGA GEAR UNSAFE MESSAGE ILLUMINATED WHEN GEAR HANDLE WAS SELECTED TO THE DOWN POSITION. CYCLED GEAR HANDLE AND LIGHT WENT OUT. A/C WAS INSPECTED AND GEAR PINS INSTALLED. A/C WAS THEN FERRIED TO RDU. MX REPLACED THE RIGHT MLG UPLOCK SENSOR IAW 32-61-03. REPLACED RT UPLOCK ACTUATOR ASSEMBLY IAW 32-31-04. GEAR PINS WERE REMOVED. OPS CHECK L/G IAW 32-32-00. NO FAULTS NOTED. A/C THEN DEPARTED RDU WHERE UPON SELECTING GEAR HANDLE TO THE UP POSITION L/G UNSAFE LIGHT CAME ON. SELECTED GEAR DOWN AND LIGHT WENT OUT. A/C RETURNED TO RDU WHERE IT WAS FOUND THAT THE L/G TEST HANDLE WAS LEFT IN THE TEST POSITION. TEST HANDLE WAS SELECTED TO NORMAL POSITION AND SAFTIED IAW 32-00-00-710-81.