What was found
CLIMBING THROUGH FL 210, BLEED 2 LEAK, EICAS MSG, RAN QRH PROCEDURES, MESSAGE EXTINGUISHED. RETURNED TO DEPARTURE FOR PRECAUTIONARY LANDING. LANDING WEIGHT WAS 6800 LBS WITH NO EXCESSIVE DESCENT RATE ON TOUCHDOWN. FOUND RT ENGINE PRECOOLER AFT INTERFACE GASKET BLOWN OUT. REMOVED AND INSTALLED RT ENGINE PRECOOLER AFT INTERFACE GASKET IAW AMM 38-11-08. OPS CHECK OF ENGINE BLEED SYS GOOD IAW AMM 36-11-00-710-801-A/500.