What was found
CRACK AFT BIFURCATION TRACK FAIRING SKIN INBOARD SIDE AT LT UPPER ENGINE THRUST REVERSER C-DUCT. CRACK WAS STOPPED DRILL PER SRM 54-30-13 PAR (5) VOL IV (ET) HFEC INSPECTION WAS ACCOMPLISHED ON AFT BIFURCATION TRACK FAIRING SKIN INBOARD SIDE AT LT UPPER ENGINE THRUST REVERSER C-DUCT. NO CRACKS WERE FOUND AFTER STOP DRILL, PER NDT SPM 06-10-01.001. DOUBLER OF REPAIR WAS FABRICATED PER SRM 54-30-13 (7) VOL IV AND INSTALLED PER SRM 54-30-13 PAR (9) VOL IV.