What was found
DURING D-CHECK, FOUND LEFT HAND CUSP AT FS 1200 HAS CORROSION. CUT OUT DAMAGED SECTION OF CUSP. FABRICATED AND INSTALLED NEW SECTION OF CUPS IN ACCORDANCE WITH DOUGLAS AIRCRAFT COMPANY SRM 53-2-5. WORK ACCOMPLISHED UNDER ARROW AIR FORM JW3B, WORK ORDER 970101, ITEM NR 0160, CONTROL NR 5062.