As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF AUTO PRESSURIZATION LEFT AND RIGHT INOPERATIVES. FLIGHT RETURNED TO BAQ. BITE ON BOTH PRESSURIZATION CONTROLLERS WAS PERFORMED, CONNECTOR ON OUT FLOW VALVE ACTUATORS WERE CLEANED AND ADJUSTED IN ACCORDANCE WITH AMM 21-32-00 PAGE 201.