What was found
UPON GEAR RETRACTION, LEFT MAIN A & B RED LIGHTS WOULD NOT EXTINGUISH AND STAYED ON CONTINUOUSLY UNTIL GEAR PUT DOWN. GEAR EXTENDED NORMALLY. INSPECTED LEFT MLG UPLOCK A & B SENSORS, HARNESS, TARGET PLATES, AND RETRACTION/EXTENSION ACTUATOR. NO DEFECTS FOUND. PERFORMED GEAR SWING SEVERAL CYCLES. OPS CHECKED GOOD. UNABLE TO DUPLICATE DISCREPANCY. REPLACED LDG HANDLE SELECTOR FOR TROUBLESHOOTING. OPS CHECKED ON GEAR SWING. S/N OFF: 120335.