What was found
CORROSION FOUND ON FRAME, BS 1271 BETWEEN LONGERONS 28 AND 30L AT AFT CARGO BAY. SECTION OF FRAME REMOVED IAW SRM 53-030. NEW SECTION OF FRAME, ANGLES WERE TRIMED AND DRILLED, AND PLATES WERE FABRICATED IAW SRM 53-030. INSTALLED IAW SRM 51-10-3, PAR 14, 21 AND 53-030, FIG 2A.