As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING COMPLYING EO F-7120-7-5000 PT1, FIG 1 SHEET 1 STEP 7, AFTER REMOVAL OF NR 1 PYLON AFT ENG MOUNT FWD & AFT SHEAR BOLT FLANGE BUSHINGS, FOUND BUSHING HOLES TWO EACH OUT OF DWG TOLERANCE. REPAIR CARRIED OUT AS PER EA F-5450-T0309191 PART 1 [ PYLONS STRUCTURES - SB-757-71- 0093 - OVERSIZED MOUNT HOLES ON NR 1 & NR 2 STRUT AFT ENGINE MOUNT BULKHEAD FITTINGS]. REPAIR IS MAJOR.