As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE CONFIGURATION, AFTER 30 MINUTES OF FLIGHT WITH NO ISSUES, THE RIGHT CABIN DOOR OPENED. THE FORCE OF THE EVENT BROKE THE GLASS OF THE DOOR AND DAMAGES THE ALUMINUM AND FIBERGLASS, LEAVING THE DOOR IN SUCH A CONDITION THAT RENDERED IT UNABLE TO CLOSE AGAIN. A FORCED LANDING WAS EFFECTUATED.