What was found
INPS PDX / LEVEL 2 CORROSION: DURING INSPECTION FOUND ALL 5 CARGO AREA SEAT TRACKS CORRODED BEYOND SERVICEABLE LIMITS IN VARIOUS LOCATIONS. DAMAGE RANGES BETWEEN FUSELAGE STATION 166 - 332. REMOVE AND REPLACE SEAT TRACKS WITH FACTORY REPLACEMENT PARTS. (PNS 2611040-1, 2611040-2, 2611040-3, 2611040-5 AND 2611040-12).