As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIM MIGRATION INSIDE NR 1 PYLON SEEN THROUGH ACCESS PANEL 434AL AT LOWER INTERNAL BULKHEAD TO ENGINE MOUNT SURFACES BELOW BARREL NUTS AT I/B AND O/B SIDES. FABRICATED AND INSTALLED NEW SHIMS AT 191.861 BULKHEAD LOWER SURFACE IAW DWG 311N3160-6, SRM 51-40-02, SRM 51 -40-04, & ERA 630819-14 REV WO O PRI REV 1. (1381779)