As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT SLOW TO PRESSURIZE. EMER DECLARED FLIGHT RETURNED & LANDED WITHOUT INCIDENT. REMOVED DEBRIS FROM AFT CARGO DOOR SEAL DEPRESSOR AREA & PRESS CHECKED OK. REPLACED LT TEMPERATURE CONTROLLER. SYS GND CHECKED NORMAL OPERATION CLOSED.