What was found
STAINLESS ANGLE AT BOTTOM OF BACK WALL IN UPPER CARGO HAS CORROSION UNDER IT ON FLOORBEAM, APPROXIMATELY AROUND BS 1556. REMOVED & REINSTALLED STAINLESS ANGLE AT BACK WALL IN UPPER CARGO, REMOVED CORROSION & R & R SEAT TRACKS IAW SRM 51-40-02, PG 4, PAR 7, 53-00-01, REA B653-60666-MR, B653-60664-MR B653-60667-MR & B653-60670-MR. 368-53-16-94451-201X2, 368-53-16-94551-202X2, SEAT TRACKING , NSN, 1405-45 TO 1605.5 STR LBL 33 TO RBL 33. CORRODED. ACFT WAS GROUNDED.