As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT ENGINE FIRE LOOP 2 EICAS MESSAGE. TRANSFERRED TO MDDR 137556, IAW MEL & 26-11-01, CAT C. PERFORMED TEST OF LT FIRE LOOP, IAW AMM 26-11-00. OPERATIONS TEST GOOD. PERFORMED NR 2 FIRE LOOP TEST 26-11 FAULT TREE 804. OPERATIONS CHECK GOOD. THIS CLEARS MDDR 137556.