As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF ROLL, GEAR DOOR WARNING LIGHT ILLUMINATED. ABORTED TAKEOFF AND RETURNED TO THE GATE. DOOR WAS DETERMINED TO BE CLOSED AND LOCKED. PLACED ON MEL. FOUND LOOSE GEAR SWITCH ON RIGHT MAIN DOOR. ADJUSTED SWITCH, OPERATIONAL CHECK GOOD.