What was found
SIN - FLT 877 - NR 2 FIRE WARNING LIGHT FLASHED WITH MOMENTARY BELL. REDUCED THRUST NR 2 ENGINE AND SYMPTOMS DID NOT REOCCUR IAW AFM, PROCEDURES, FIRE WARNING SYSTEM CHECKED OK, L/P NR 7904359. MAINTENANCE OPENED NR 2 ENGINE COWL, INSPECTION NR 2 ENGINE FIRE LOOP. REMOVED AND CLEANED OILED CONNECTORS AT BOTH SYSTEM A/B CONNECTORS. RESECURED CONNECTORS, RAN ENGINE UP TO 70 PERCENT. NO LEAKS NOTED. ENGINE COWL SECURED. SYSTEM GROUND TEST NORMAL AND WITH ENGINE AT IDLE POWER MM REF 26-11-0. REQUEST FURTHER CREW COMMENTS. RELEASED AIRCRAFT FOR SERVICE. (M)