What was found
DURING ROUTINE C-CHECK INSP FOUND NR 4 PYLON INTERNAL ANGLE CRACKED AT STATION YN 321.397 AND STA XRS 495.665. REMOVED FASTENERS AS NEEDED TO PERFORM REPAIR. REMOVED DAMAGED AREA. PERFORMED NDT INSP. NO DISCREPANCY FOUND. FABRICATED REPAIR ANGLE, STRAP DOUBLER, STRAP, SPACERS. PERFORMED HEAT TREATMENT. CLEANED, TREATED, PRIMED AREA AND REPAIR PARTS. INSTALLED NEW FASTENERS AND REPAIR PARTS IAW FAA FORM 8110-3 DATED 07/22/11, DWG ED-5379 DATED 06/08/11, SRM 51-1-20D, NDT SPM PART 06-10-01-001, DPS 4.710 REV "L", SRM 51-1-14, SRM 51-1-6, SRM 51-1-8B, AND SRM 51-3-1.