As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOLLOW UP TO HISTORY OF #2 ENGINE FIRELOOP B FAULTS. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE UPPER DETECTOR ASSEMBLY. REVERSED ALTERNATE DEACTIVATION PROCEDURES. ETOPS GROUND VERIFICATION NOW OPS NORMAL REF B737-800 AMM TASK 26-11-00-710-801. CLOSED TSR DUE TO CONFIRMED FAULT AND POSITIVE MAINTENANCE ACTION.