What was found
INSPECTION TYPE-C, CORROSION AROUND FASTENER HEADS ON O/WING CTR FUEL TANK UPPER SURFACE AT STA 1229 X=-87 TO -107. LOCK FASTENER ON AFFECTED AREA REMVD FOR ACCESS. CORROSION REMOVED, MEASURED THK: 0.170", MAT'L REMOVED:0.067", MAT'L REMN:0.103". FOUND OUT OF LMT FPI & 10X VISUAL INSP C/O ON REWK AREA, FOUND NO CORROSION OR CRACK. REWORK AREA REPROTECTED & PAINTED. LOCK FASTENERS INSTALLED FUEL VAPOR BARRIER SEAL APPLIED. FUEL LEAK CHECK C/O, SATIS.