What was found
INSPECTION TYPE:C, NR 4 PYLON (O/B STRUT) AFT TORQUE BULKHEAD VERTICAL CHORD FOUND 1 FASTENER HOLE CRACK AT CHORD FWD SURFACE RUNNING O/B AT 4 O'CLOCK POSITION APPROX .125 INCH LENGTH. CRACK HOLE REAMED ECCENTRICALLY TO 0.500 INCH AND NDT INSPECTION CONFIRMED CRACK FREE REF NTM PT6, 51-00-00 FIG 4. INSURANCE CUT AND FREEZE PLUG CUTOUT ON CHORD AS PER SRM 51-10-08, ANGLE AND DOUBLER, FABRICATED, INSTALLED DETAILS REF PROCESS CARD AND RCBR017 & UPS-EO- 747-5410-13496 PG 58 FIG 2, TELEX UPS-HKG01-00116H & RS 54-53-34701.