What was found
NR 1 PYLON OTBD AFT 311N5046-31 SKIN ASSY HAS 2 EA FASTENER HOLES WITH VISIBLE CRACKS AT APROX PPS 153.90 NDT HFEC INSPECTED VERIFIED CRACKS IAW NTM, 51-00-19 PART 6, (CRACK LENGTHS ARE 1=0.250 INCH, 2= .0200 INCH, 3= 0.198 INCH, STOP DRILLED CRACKS IAW EA F-5450-131112, PRECOOLER FWD MOUNT FITTING REMOVED AND INSTALLED IAW SRM 51-40-02, EXTERNAL DOUBLER FABRICATED FROM 15-5 PHA 0.90 INCH, BATCH NR 8R00029009 AND INSTALLED AND COMPLIED IAW EA F-5450-131112, DATED 08/10/09, THIS IS A CATEGORY "A" MAJOR REPAIR.