As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION FOUND IN FLOOR WEB AT FR 76 RBL60. REMOVED AND REPLACED FLOOR SILL WEB LOCATED BETWEEN FR 74 TO FR 79 AND BTW RBL 47 TO RBL 57 PER A220 ASRP BD500-A-J51-42-20- 00AAA-078A-A AND BOMBARDIER DWG # C01342700 REV-T. (LP# 1800085; AIRCRAFT WAS GROUNDED)