As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW RECEIVED A RT OVERWING EMERGENCY DOOR OPEN INDICATION. RAN QRH, DECLARED AN EMERGENCY AND DIVERTED. LANDED AND TAXIED TO GATE WITHOUT INCIDENT. MAINTENANCE INSPECTED AND FOUND THE RT OVERWING EMERGENCY DOOR NOT SEATED PROPERLY. MAINTENANCE RESEATED DOOR AND PERFORMED PRESSURE CHECK IAW AMM AND OPS CHECKED GOOD. ACFT IS GOOD FOR SERVICE.