What was found
CABIN ZONE 250, SEAT TRACK AT Y450/ FR 40 - FR 47/ CORRODED AT AFT FR 40, FR 40.1, FR 40.2, AFT FR 40.2, AFT FR 40.3, FR 41, FR 42, AFT FR 42, AFT FR 43, FR 44, FR 45, FWD FR 46, FWD FR 47. CORROSION REMOVED FOUND TO HAVE EXCEEDED LIMIT SRM 53-31-15 FIG 101. DAMAGED SEAT TRACK AT Y450 FR 40 - FR 47. REMOVED AND NEW SEAT TRACK INSTALLED IAW ER/A 481455-14 REV 0. ASSOCIATED ER/A 14-481455 ADDED FOR AC 3354.