What was found
LWR AFT CORNER OF ATTACH FRAME INBOARD OF 1439 SLAT ATTACH POINT ON NR 5 SLAT BROKEN. REMOVED NR 5 SLAT TO REPAIR IAW B727 MM 27-81-1, REMOVED INNER PANELS AND I/B & O/B RIBS FOR REPLACEMENT IAW B727 SRM 51-30-2, DRILLED, TREATED AND PRIMED PARTS AND AREA IAW B727 SRM 51-10-2. INSTALLED I/B & O/B RIBS IAW B727 SRM 51-30-2, REINSTALLED INNR PANELS IAW B727 SRM 51-30-2, REINSTALLED NR 5 SLAT IAW B727 MM 27-81-1. OPS CHECK GOOD IAW B727 MM 27-81-0 PO 5070101 P/N 65-17276-11, PO 5070101, P/N 65-17276-9.