What was found
AFTER TAKEOFF, THE NR 1 ENGINE FUEL FILTER CLOG MESSAGE ILLUMINATED ON ECAM. ENGINE FUEL FILTER SHOWED EVIDENCE OF PLACARD/LABEL MATERIAL. AIRCRAFT WAS MAINTENANCE FERRIED TO A MAINTENANCE BASE FOR FUEL TANK ENTRY. IN THE LEFT WING, 14 LOOSE PLACARD WERE FOUND AND 6 WERE MISSING. 8 PLACARDS WERE FOUND IN THE LEFT VENT/SURGE TANK. IN THE RIGHT WING, 11 LOOSE PLACARDS WERE FOUND AND 9 WERE MISSING. MAINTENANCE ACCOMPLISHED AIRBUS MANDATORY SERVICE BULLETIN A320-57-1117 AND REMOVED ALL WING TANK PLACARDS/LABELS. (M)