As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 6532 - LGA-IAD - ABORTED THE TAKEOFF DUE TO THE MAIN BAGGAGE DOOR WARNING. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE CLEANED AND INSPECTED BAGGAGE DOOR MICROSWITCH. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)