What was found
(CAN) SHORTLY AFTER TAKEOFF, RV1876 GOT A BLEED FAULT. WITH A PACK TWO FAILURE INBOUND, THE CAPTAIN DECIDED THAT AN AIRBORNE RETURN WAS NECESSARY. RESOLUTION UCT WIYH TLT FLANGE BLOWN OUT.REPLACED WITH A NEW ONE SERVICABLE AS PER AMM 36-11-48,49 BLEED SOLENOID AND FAN AIR THERMOSTAT TRANSFER CARRIED OUT AS PER AMM 36-11-55,36-11-43. PRE COOLER EXCHANGER RE+RE AS PER AMM 36-11-42,44,48,49.LEAK CHECK CARRIED OUT,FUNCTION OK W.P