What was found
RT BLEED DUCT LEAK EICAS MESSAGE SURING CLIMB, CRUISE, AND TOUCHDOWN WAS AVERAGE. AIR TURN BACK, LANDED AT 287,000 LBS. REMOVED CRACKED DUCT BODY CROSSOVER RT SIDE, PN 212T3109-40. WELD REPAIR ECS DUCT IAW CMM 36-10-06. LEAK, SECURITY CHECK GOOD OK FOR SERVICE.