As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, CORROSION AFT SHEAR WEB SUPPORT FRAME FR 69 - FR 70 STR 23R; REMOVED CORROSION FOUND TO BE OUT OF SRM LIMITS. REMOVED AND REPLACED AFT CABIN SHEAR WEB SUPPORT FRAME FR 69- FR70 STR23R IAW A320 SRM 53-41-14-05-A AND SRM 51-72-11. CLASSIFIED AS MAJOR REPAIR.