As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING APPROACH THE CABIN LT DOOR OPENED IN FLIGHT. THE CREW SLOWED THE ACFT DOWN AND CONTINUED WITH THE APPROACH AND LANDED SAFELY. MAINTENANCE REMOVED AND INSPECTED THE DOOR, THE DOOR SAFETY LATCHING MECHANISM WAS REPLACED, THE DOOR WAS ALSO RE-ADJUSTED AND DOOR LOCK PINS ROATED 180 DEGREES FOR A TIGHTER FIT. THE ACFT HAS BEEN RETURNED TO SERVICE.