What was found
DURING ROUTINE CPCP INSPECTION, FOUND LEVEL 2 CORROSION, STA 340 FWD SIDE LBL33 SEAT TRACK FLANGE HAS CORROSION. REMOVED CORROSION IAW B747 SRM 51-10-01. FOUND OUT OF LIMITS 53-10-01. FABRICATED REPAIR DOUBLERS IAW B747 SRM 53-10-05 FIG 1A. INSTALLED SEAT TRACK REPAIR IAW B747 SRM 53-10-05 FIG 1A. CORROSION TASK CARD NUMBER C53-210-07. NON-ROUTINE TASK CARD NUMBER 25235.