As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ENROUTE FROM KLAS TO KSNA CREW EXPERIENCED AN OPEN-DOOR CAS AROUND FL26 AND STARTED TO LOSE CABIN PRESSURIZATION. CREW INITIATED AN EMERGENCY DECENT PER THE QRH AND DECLARED AN EMERGENCY, IN WHICH CABIN PRESSURE STARTED TO MAINTAIN AGAIN AT AROUND 16,000’. THE CREW HAD A SAFE LANDING TO ITS FILED DESTINATION (KSNA).