What was found
PRIOR TO PUSH, HEARD A LOUD POP ON THE FLIGHT DECK. STATUS MESSAGE: EQUIP VENT FAN. REPLACED EQUIPMENT COOLING VENT FAN PER MM 21-27-20-4, FOUND REMOVED FAN WITH ALL BLADES DESTROYED. PERFORMED OPS TEST PER SAME MM. TEST FAILED WITH MAINTENANCE MESSAGE 21-15130. NEED TO REPLACE CONTACTOR M21101. NOT IN STOCK IN CDG. REAPPLIED MEL, A/C OK TO CONTINUE. FIM: 21-27-00-2-0 IN REF TO 777 FIM REMOVED AND REPLACED THE ELCU. PLACED AIRCRAFT BACK TO NORMAL CONFIG AND ALL OPS CHECKED GOOD. OK FOR SERVICE.