What was found
RDU - AIR TURN BACK - FLT 0528 - AFTER TAKEOFF FROM RDU EN ROUTE FOR PHX ECAM DISPLAYED AIR ENGINE NR 2 BLEED FAULT. FOLLOWED ECAM ACTION AND FAULT CLEARED, FAULT REAPPEARED AND CLEARED SEVERAL TIMES BEFORE PRESSURE REGULATING VALVE CLOSED FOR GOOD. ECAM THEN DISPLAYED AIR ENGINE NR 1 BLEED FAULT, BLEED PAGE REVEALED HIGH PRECOOLER TEMPERATURE OF 305 DEGREES. AIRCRAFT TURNED BACK TO RDU AND LANDED WITHOUT FUTHER EVENT. **SUPP** MAINTENANCE REMOVED AND REPLACED THE NR 1 ENGINE THERMOSTATIC TEMPERATURE CONTROL IAW AMM 36-11-43-04, AND THE NR 2 ENGINE BLEED PRESSURE REGULATING VALVE IAW AMM 36-11-52-04, OPERATIONAL CHECKS WERE GOOD.