As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNABLE TO MAINTAIN PRESSURIZATION. *S/D* LEFT AIR CONDITIONING PACK TRIPPED OFF FOLLOWED BY THE RIGHT PACK TRIPPED OFF AND WOULD NOT RESET. ADJUSTED LEFT RAM AIR EXHAUST LOUVERS. REPLACED AIR CONDITIONING ACCESSORY UNIT, OVERHEAD CONTROL PANEL AND CABIN TEMPERATURE SENSOR, OPS CHECK OK.