What was found
SEAT TRACK BETWEEN FR20 & FR21 APPROX LBL 78 PIECE OF TRACK MISSING & EVIDENCE OF CORROSION. CHECK OF SEAT TRACK BETWEEN FR20 & FR21 APPR LBL 78 FOUND OUT OF LIMITS IAW A300 SRM 53-10-00. REMOVED AND REPLACED SEAT TRACK FROM FRAME 19.5 TO FRAME 26.5 LBL 77 MATERIAL USED 7075T6511/TMS 60-224457/ A532-74005D PO 23488101 SIZE 14 FT 8 INCHES. REF A300 SRM 51-10-40, 51-40-12, 51-30-30.