As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED. WHEN THROTTLES ADVANCED FOR TAKEOFF THE TAKEOFF CONFIGURATION WARNING, MASTER CAUTION AND PSEU LIGHTS ILLUMINATED. TAKE OFF ABORTED AT APPROXIMATELY 30 KNOTS. FLIGHT ATTENDANTS CHECKED POSITION OF ALL DOOR HANDLES. PSEU EXTINGUISHED. SUBSEQUENT TAKEOFF UNEVENTFUL.