What was found
WHILE EN ROUTE TO SNN, FLIGHT CREW REPORTED AT ALTITUDE NR 2 ENGINE FIRE WARNING LIGHT ILLUMINATED. INDICATIONS WERE B-LOOP SHOWING 8.7 ON THE COMPARTMENT INDICATOR. ACCOMLISHED ENGINE FIRE BOLD FACE AND CHECKLIST ITEMS IN ACCORDANCE WITH SECTION II OF THE AOM. CHANGED FOUR DUAL FIRE DETECTOR WIRES P/N 895396, 89439, 895397, 895899. CHANGED BOTH FIRE BOTTLES S/N M2200 AND M1162, FIRE TEST OK ON LOOPS A AND B.