As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE NR 2 DETECTION CIRCUIT GROUND LIGHT INTERMITTENTLY FLICKERS IN FLIGHT. PRESS TO TEST DOES NOT ILLUMINATE LIGHT. REPOSITIONED NR 2 ENGINE FIRE LOOP IAW MM 26-11-01. REMOVED AND REPLACED NR 2 GROUND FAULT LIGHT BULB IAW MM CHAP 33. SYSTEM OP'S CHECKED GOOD.