What was found
DURING D-CHECK, FOUND FRAME AT FS 540 HAS CORROSION. CUT OUT DAMAGED SECTION OF FRAME. FABRICATED AND INSTALLED NEW SECTION OF FRAME IN ACCORDANCE WITH DOUGLAS AIRCRAFT COMPANY SRM 53-2-0. WORK ACCOMPLISHED UNDER ARROW AIR FORM JW3B, WORK ORDER 970101, ITEM NR 799, CONTROL NR 5394.