As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX - FLT 898 - AFTER TAKEOFF LAX, MIA LEFT ENGINE FIRE LOOP NR 2 LIGHT ILLUMINATED FOLLOWED BY LOOP NR 1 LIGHT. AIRCRAFT RETURNED TO LAX AND LANDED WITHOUT INCIDENT. REPLACED LEFT ENGINE UPPER AFT FIRE DETECTION LOOP. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)