What was found
DURING ROUTINE C-CHECK INSP, FOUND RT WING INBD FLAP RIB CRACKED AT STA XF 129.000. REMOVED DAMAGED RIB. FABRICATED NEW RIB. PERFORMED HEAT TREATMENT. CLEANED, TREATED, PRIME AREA AND REPAIR PARTS. INSTALLED NEW RIB IAW SRM CHAP 57-7-1 FIGURE 2, SHEET 4, SRM 51-1-21, SRM 57-1-0 FIG 1, SRM 57-7-1 FIG 2, SHEET 4, ITEM "Q", DPS 4.710 REV."L", SRM 51-1-4, DPS 3.69-5 REV."U", SRM 51-1-1, DPS 7.00-1 REV."BL", SRM 51-1-8B, SRM 51-1-21, SRM 51-1-20D, SRM 51-3-0 AND SRM 51-3-1.