As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, CORROSION ON L2 DOOR SILL FWD AND AFT IB CORNERS FR 66 - FR 68 STR 23L; REMOVED CORROSION FOUND TO BE OUT OF LIMITS PER SRM. REMOVED AND REPLACED L2 DOOR SILL FR 66 TO FR 68 STR 23L IAW A320 SRM 53-41-14-283-002 AND 51-72-11.