As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 3108 - LGA-BUF - DURING CRUISE FLIGHT, THE "E1 FIRE DET FAIL" MESSAGE APPEARED ON THE EICAS DISPLAY. DECLARED AN EMERGENCY AND FOLLOWED THE QRH TO SHUT THE ENGINE DOWN. DIVERTED TO BINGHAMPTON AIRPORT. MAINTENANCE REMOVED AND REPLACED E1 FIRE LOOP. OPS CHECK GOOD.