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 THRESHOLD SHEET LOCATED FR52A TO FR56 RH SIDE IN AFT CARGO COMPARTMENT; ACP ON AEROMAN W/O 2020 7/1 NON-ROUTINE 2020-44137. REMOVED AND REPLACED THRESWHOLD SHEET LOCATED FR 52A TO FR 56 RH SIDE IN AFT CARGO COMPARTMENT (1E/A) IAW A320 SRM 51-72-11 AND DRAWING D53475500.