What was found
DURING ROUTINE CPCP INSPECTION, FOUND 1 AREA OF CORROSION ON BOTTOM OF RBL11.33 SEAT TRACK FWD OF BS 520. REMOVED CORROSION IAW B747 SRM 51-10-01. FOUND TO BE OUT OF LIMITS IAW B747 SRM 53-10-01. REMOVED SEAT TRACK IAW B747 SRM 51-30-02. INSTALLED NEW SEAT TRACK SECTION IAW B747 SRM 51-10-01 AND 51-30-02. CORROSION TASK CARD NUMBER C53-210-07. NON-ROUTINE TASK CARD NUMBER 25187.