As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HMV INSPECTION, THE SKIN AT STA 480 WAS FOUND CORRODED IN TWO LOCATIONS BETWEEN STR 26R-28R. THE DAMAGE CONSISTED OF A 1.125 INCH CUTOUT NEAR STR 27R AND A 3.25 INCH BY 2.5 INCH CUTOUT AT THE STA 480 BUTT SPLICE. IN ACCORDANCE WITH B727 SRM 53-30-3, FIG 3A AND DER APPROVAL, AN EXTERNAL DOUBLER AND TRIPLER WERE INSTALLED.