As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 668 RDU/MCO ON CLIMB-OUT HAD BLEED 1 AND 2 FAULT AND PRESS CONTROLLER FAULT ON MFDU. RETURN TO RDU AND RETURNED TO THE GATE. REMOVED AND REPLACED NR 1 AND NR 2 PROSV. OPERATIONAL AND LEAK CHECKS ARE GOOD IAW F-100 MM 36-11-05. ALSO, PERFORMED SELF TEST OF NR 1 AND NR 2 CPC. OPS CHECK GOOD IAW F-100 MM 21-31-01.