As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LEFT WING) NR 1 PYLON LOWER AFT HALF RIB IS CRACKED JUST BELOW TORQUE TUBE CUTOUT. REMOVED LEFT WING NR 1 PYLON LOWER AFT HALF RIB PER SRM 51-40-02-0G-0. 4318C, 19JAN13. LOCATED THE NEW RIB, DRILLED AND INSTALLED PER SRM 51-40-02-0G-0.