What was found
ON CLIMBOUT, DUCT LEAK LIGHT FOR RIGHT ENGINE ILLUMINATED, IT STAYED ON FOR MORE THAN 3 MINUTES. SHUT DOWN RIGHT ENGINE PER QRH AND RETURNED TO RNO. INSPECTED A/C RIGHT ENGINE BLEED AIR SYSTEM, FOUND SUSPECT TEMP SENSOR WIRE TO BE IN CLOSE PROXIMITY TO BLEED AIR LINE. SECURED WIRE WITH A/C WIRE BUNDLE, RAN A/C 10 MIN USING BLEED AIR SYSTEM, COULD NOT DUPLICATE. CHECKS GOOD.