As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING A PHASE 1-4 INSPECTION, NOTICED TOP CENTER SKIN OF THE HORIZONTAL STABILIZER WAS BUCKLED BEYOND LIMITS AS STATED IN THE SRM. WHEN SKIN WAS REMOVED FOR REPLACEMENT, A HIDDEN DAMAGE INSPECTION REVEALED UPPER AFT STRINGER WAS ALSO BENT AND DISTORTED. REMOVED AND INSTALLED NEW CENTER SKIN (UPPER) AND UPPER AFT STRINGER.