What was found
BLEED 2 LEAK ILLUMINATED IN FLIGHT. RAN QRH RETURNED TO DEPARTURE. BLEED 1 FAIL ILLUMINATED IN FLIGHT RAN QRH EICAS MSG WENT AWAY BUT YELLOW X ON SYSTEMS PAGE OVER BLEED 1 VALVE. BLEED 1 FAIL ILLUMINATED AGAIN AFTER LANDING "TRANSFERRED TO NRWC 026-DFW-01018" -C/A- REMOVED AND REPLACED RH ENG. PRECOOLER OUTLET DUCT GASKET IAW 36-11-08, AND PERFORMED OP CK OF THE RH ENGINE PNEUMATIC BLEED SYSTEM IAW E-175 AMM 36-11-00. OP CHECK GOOD. REMOVED AND REPLACED NACELLE PRESSURE-REGULATING SHUTOFF-VALVE FILTER IAW E175 AMM 36-11-03. PERFORMED OPS CHK OF AIR BLEED SYSTEM IAW E175 AMM 36-00-00-710-801-A. NO BLEED FAULTS MSG NOTICED ON EICAS. OPS CHK GOOD. PERFORMED TAKEOFF/GO-AROUND (TOGA) SWITCH OPERATIONAL TEST IAW E175 AMM TASK 22-11-00-710-801-A, EFFECTIVITY PRIMUS EPIC LOAD 25.7