As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED OWE SHOWED OPEN DURING CLIMB, CREW RETURNED TO FIELD AT DCA AND LANDED WITHOUT INCIDENT. AN EMERGENCY WAS NOT DECLARED. MAINTENANCE INSPECTED RT OVERWING EXIT PER EMB AMM AND REPORTED NO DEFECTS FOUND. A/C WAS RETURNED TO SERVICE.