As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK INSPECTION, DISCOVERED CORROSION COMMON TO THE LAP SEAM BETWEEN STA 259.5 AND STA 295 AND STR 24R. REPAIRED BY CLEANING OUT CORROSION PER SB 53-0072. DUE TO EXTENT OF DAMAGE, THE LAP SEAM WAS REPAIRED USING REPAIR DOUBLERS AND FILLERS. REPAIRED IAW EVERGREEN AIR CENTER - ENGINEERING CHANGE/REPAIR AUTHORIZATION NR N400RG-53-04-EAC.