As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DTW - FLT 3341 - DURING CLIMBOUT, THE LT ENGINE FIRE LIGHT ILLUMINATED FOR 10 TO 15 SECONDS. ALL ENGINE PARAMETERS NORMAL. THE ACFT RETURNED TO DTW. MAINTENANCE REPLACED THE 450 DEGREES FIRE DETECTOR. SYSTEM OPERATED SATISFACTORILY. (W)