As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HMV, CORROSION DAMAGE TO THE SKIN AND STR 27L WAS FOUND IN SEVERAL LOCATIONS BETWEEN STATIONS 600 AND 660. THE SKIN WAS CRACKED AND CORRODED AT APPROX FS 627 AND STR 27L. THERE WAS AN EXISTING EXTERNAL REPAIR AT APPROX FS 620 AND STR 27L. REPAIRED PER B727 SRM 53-30-3, FIG. 3 (SKIN) AND B727 SRM 53-10-3, FIG. 1 (STRINGER).