What was found
MDCC FRAME 12 - 14, Y953 FLOOR SUPPORT CORRODED. IAW SRM 51-74-10 . REMOVED THE CORROSION & DAMAGE WAS OUT OF LIMITS IAW SRM 53-12-15. CUT OUT THE DAMAGED AREA OF THE TEE SECTION & DEBURR THE EDGES IAW SRM 53-12-15-201 FIG 207. MANUFACTURE THE REPAIR FLOOR SUPPORT, SPLICE & BREAK THE SHARP EDGES IAW SRM 53-12-15 PARA 5G & INSTALL THE REPAIR PARTS IAW SRM 53-12-15-201 PARA 5G. THIS REPAIR CATEGORY IS B. THIS REPAIR MUST BE INSPECTED AT DEFINED INTERVALS IAW SRI53-12-15-2-002-00. FIRST INSPECTION AFTER REPAIR IS 51000 FLIGHT CYCLES & 89000 FLIGHT HOURS. MAJOR REPAIR IAW GMM6-2-100.