As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/SWF - FLT 7284 - DURING TAKEOFF, AIRCRAFT ABORTED TAKEOFF DUE TO CARGO DOOR WARNING LIGHT ILLUMINATED. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND RESECURED DOOR, OPS CHECKED OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)