What was found
DURING ROUTINE C-CHECK INSPECTION, FOUND CORROSION BETWEEN STA 480 TO 660 RBL 44 SEAT TRACK. REMOVED CORROSION IAW B727 SRM 51-10-1, FOUND TO BE OUT OF LIMITS IAW B727 SRM 53-10-1. REMOVED DAMAGED SEAT TRACK AT STA 480 TO 520 AND STA 580 TO 660 IAW B727 SRM 53-10-5. INSTALLED IAW B727 SRM 51-30-2. C-CHECK WORK CARD NUMBER 40090. NON-ROUTINE TASK CARD NUMBER 14909.