What was found
SHIP 3353 MID AND FWD CABIN FLOOR STRUCTURE, CORROSION WAS FOUND AT THE SEAT TRACKS -Y1959 AND +Y1959 PN F53276430200 M/F ABS5080A536 / T76511. THE PARTS ARE OUT OF A330 SRM 53 00-15-283-001 LIMITS AND MUST BE REPLACED. AS PER A330 SRM 53-21-15-02A, SEAT TRACK PN F53276430202 CAN BE USED AS SPARE, BUT THERE IS AN ISSUE ABOUT TWO HOLES BETWEEN FR37.1-37.2 AND TWO HOLES BETWEEN 37.2-37.3 THAT ATTACH THE COVER PLATE F53979638200 ON EACH SIDE (-Y1959 AND +Y1959). THE SEAT TRACK PN F53276430202 DOES NOT HAVE THE HOLES TO ATTACH THESE COVER PLATES. CORRECTIVE ACTION: REF ER/A 609908-14. (2864298)