What was found
DURING ROUTINE INSPECTION, FOUND INTERIOR ALUMINUM TRIM PANELS CORRODED AT ALL AREAS WHERE ANY STEEL PARTS, I.E., SCREWS, BOLTS, ETC., OR ADJACENT ALUMINUM STRUCTURE WAS MAKING CONTACT WITH THE TRIM PANELS. SUSPECT THAT THE FABRIC ATTACHED TO THE TRIM PANELS HAD BEEN FIREPROOFED WITH 'SALT BRINE SOLUTION' OR EQUIVALENT; CAUSING THE REPEATED HEAVY CORROSION FOUND ON ALL TRIM PANELS.