What was found
CORROSION ON MAIN CABIN SEAT TRACK INBD AND OTBD FLANGES, BETWEEN BS 680 AND 740, RBL 45.5. BLENDED AREAS AND FOUND OUT OF LIMITS IAW SRM 53-00-52, AD 1, PAGE 104. REMOVED AND REPLACED THE SEAT TRACK IAW 51-40-02, PAGE 4 AND DWG 143N5120.