As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HORIZONTAL STABILIZER CENTER SECTION UPPER SKIN, BETWEEN STR 8/11 AND RBL 13/32; MAINTENANCE FOUND CORROSION ON PREVIOUSLY BLENDED SKIN AREA LOCATED BETWEEN STR 9-10 AND ON PREVIOUSLY INSTALLED DOUBLER LOCATED BETWEEN STR 10-11 PER BOEING SR 1-1906538101 AND 1-257618371.