As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING DVI OF DOUBLER EDGE AROUND WASTE BOX CUT-OUT , FOUND CORROSION ON AFT INBOARD CORNER. (REF CC# 171-0784323) . REMOVED AND REPLACED WASTE BOX CUT-OUT DOUBLER. IAW BOMBARDIER DWG C01342100 REV-T AND A220 ASRP BD500-A-J51-42-21-00AAA-078A-A. (LP# 0925285)