What was found
ENGINE OVERHEAT AND FIRE DETECTION SYS NR 2, ENG "B" LOOP INOPERATIVE. ACFT GROUNDED. NR 2 ENGINE OVERHEAT DETECT SWITCH PLACED BACK IN NORMAL POSITION. ENGINE FIRE DETECT OPS NORMAL REF AMM 26-11-00. M279 FAULT, INOPERATIVE TEST SHOWS NO FAULTS REF SAME. ACCOMPLISHED FIM 26-10T802, NR 2 ENGINE B LOOP RESISTANCE VALUE FOR TABLE 1 AT 866 OHMS, TABLE 2 AT 1.9 OHMS. BOTH CHECK NORMAL. ACCOMPLISHED VISUAL AND SHAKE DOWN OF NR 2 ENGINE B FIRE LOOP. WIRE PULLED FROM TERMINAL LUG AT RT CORE DETECTOR. WIRE TOO SHORT TO RE-TERMINATE. REPLACED MW0326 HARNESS. OPS GOOD, GROUND VERIFICATION SUCCESSFUL. CLEARS MEL 26-2B.