As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RDU - FLT 901 - LOST CABIN PRESSURIZATION CONTROL. BOTH CABIN PRESSURE CONTROLLERS FAULTED, TRIED TO CONTROL MANUALLY WITH NO RESPONSE. ALL OXYGEN MASKS DEPLOYED. REPLACED PRIMARY OUTFLOW VALVE IAW AMM 21-51-03. OPS CHECK OF AUTO AND MANUAL SYSTEM GOOD. (M)