What was found
ON CLIMB-OUT, BOTH NR 1 AND NR 2 ENGINE BLEED AIR FAULTS OCCURRED. TURNED BACK AND LANDED WITHOUT FURTHER DIFFICULTY. MX R & R NR 1 BMC IAW AIRBUS MM 36-11-34. ALSO REPLACED FAN AIR VALVE CONTROL THERMOSTATS ON BOTH NR 1 AND NR 2 ENGINES IAW AIRBUS MM 36-11-43. OPS CHECKS WERE GOOD. TEMP CONTROL THERMOSTAT, FAULT CONFIRMED REASON FOR RETURN JUSTIFIED. UNIT HAD SEVERAL COMPONENTS REPLACED. UNIT REPAIRED & RECERTIFIED IAW CMM. THERMOSTAT, CONFIRMED FAILURE. PRESSURE REDUCER OUT OF SEATING AND STICK S/A WORN. REPLACED STICK & SEAT S/A. ALL WORK PERFORMED IAW CMM. COMPUTER, BLEED MON, UNIT PRE-TESTED & PASSED ALL FUNCITIONAL TESTS. NO FAULTS FOUND, UNIT TESTED IAW CMM.