As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAS/ABQ - FLT 0720 - AIR TURNBACK. AIRCRAFT WOULD NOT PRESSURIZE AFTER TAKEOFF IN ANY MODE. REMOVED AND REPLACED PRESSURE CONTROL PANEL AND CABIN PRESSURE CONTROLLER. SYSTEM OPS CHECK GOOD. REFERENCE: OPERATOR CONTROL PANEL 96ZZZX3038. (X)