As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SAL - MAJOR REPAIR - DURING C11 CHECK DISCOVERED LEVEL 2 CORROSION LOCATED ON WEB AT BS 1329.5 AND BS 1347 AT BL 64L. CORROSION WAS FOUND TO BE OUT OF SRM LIMITS. MAINTENANCE FABRICATED AND INSTALLED NEW WEB FROM BS 1320 TO BS 1360 AT BL 64L IAW BOEING 757-200 SRM 51-40-02.