As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BTM - FLIGHT 381 - AIRCRAFT RETURNED TO FIELD WHEN AFTER TAKEOFF THE REAR PASSENGER DOOR AND FORWARD CARGO DOOR INDICATED OPEN. MAINTENANCE INSPECTED BOTH DOORS, CLEANED AND LUBED SENSORS, AND PERFORMED OPERATIONAL CHECKS. OPERATIONAL CHECKS WERE GOOD AND NO FURTHER DEFECTS WERE NOTED. AIRCRAFT RETURNED TO SERVICE.