As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 3153 - EWR - FLIGHT CREW REPORTED E1 FIRE DETECTOR FAIL EN ROUTE - ENGINE OPERATING NORMALLY. EWR MX REMOVED AND REPLACED ENGINE 1 FIRE DETECTOR AND PERFORMED OPERATIONAL CHECK SUCCESSFULLY. ACFT WAS APPROVED TO RETURN TO SERVICE.