As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE IN-FLIGHT SHUT DOWN. MAINTENANCE CHECKED 'ENG 1 FIRE' MESSAGE AND AS PRECAUTION, OPENED COWLING, CHECKED A AND B FIRE LOOPS. CONDITION NORMAL. GROUND TEST FOUND LOOP B MESSAGE. AIRCRAFT REJECT TAKEOFF ON NEXT FLIGHT DUE TO 'ENG DET '' WARNING MESSAGE AND SOUND. CHECK FOUND WIRE HARNESS DH7 TERMINAL, CONDITION - NO GOOD.