As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISCONTINUED TAKEOFF ROLL AT 40 KTS AFTER RECEIVING A RIGHT FORWARD AND AFT OVERWING EMERGENCY EXIT DOOR INDICATION WITH ASSOCIATED MASTER CAUTION. FERRIED TO DTW, MAINTENANCE RESET C/B, REPLACED OVERWING FLIGHT LOCK RELAY R743 AND PERFORMED ASSOCIATED RETURN TO SERVICE TESTS. (LP 8759496 - AIRCRAFT WAS GROUNDED)