As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE: CPCP FINDING CORROSION ON DOUBLER REPAIR IN L/H BEAM BTW FR 15/17 AND Y=300 LH AT CABIN FLOOR STRUCTURE (W1); REF: TOMX W/O 2268 N/R 00152 REPAIRED IAW ETI -190-23-601 REV 1 AND ETD 223-190-017761 REV:/ (CONSIDERED AS A MAJOR REPAIR)