As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LINE LABELS IN FUEL CELLS COMING LOOSE. LABEL MIGRATED TO SUMP AREAS FOULING SCREENS, FLAPPER VALVES, AND JET PUMPS. TWO SEPARATE AIRCRAFT HAD FUEL PRESSURE PROBLEM RELATED TO THIS PROBLEM. LOOSE LABELS SHOULD BE REMOVED AT PHASE 5 INSPECTION.