What was found
ETOPS SIGNIFICANT SYS - EICAS ALERT "FWD EQPT OVERHEAT" ON WITH EQUIPMENT COOLING SWITCH IN STBY DUE TO MEL ITEM. SWITCHED TO OVRD POSITION-"OVERHEAT" LIGHT AND EICAS ALERT EXTINGUISHED. T/S IAW FIM21-58-00, FIG 111. REPLACED FWD EQUIPMENT COOLING EXHAUST FAN RELAY K345 IAW WDM21-58-15 COND SAME. REPLACED FWD EXHAUST FAN IAW AMM21-58-06 & REINST ORIGINAL VIBE MONITOR. SEC & OPS CK GOOD. VIBE MONITOR RESET TEST PASSED, OK FOR SVC.