What was found
RIGHT 14TH STAGE DUCT RED WARNING DURING CLIMB AT 1000 FT. COMPLIED WITH QRH REDUCED THROTTLE WARNING EXTINGUISHED. SHOWED RED ON DUCT BETWEEN COWL ANTI-ICE VALVE AND WING ANTI-ICE VALVE. LANDING WT 46,800 NOT OVERWEIGHT. FOUND CLAMPS LOOSE ON RIGHT COWL ANTI-ICE VALVE TIGHTENED CLAMPS IAW 30-22-01 LEAK CHECK OPS CHECK GOOD. RAN RIGHT ENGINE AT HIGH POWER WITH DIFFERENT CONFIGS AT ANTI-ICE VALVES, NO WARNING MESSAGE NOTED.