As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HEAVY CK COE / MAJOR REPAIR / LEVEL 2 CORROSION: RT HORIZONTAL ELEVATOR COVE HAS 4 STIFFENERS WITH CORROSION BETWEEN RIB 2 AND 4. (ALL 4 LENGTH 4", WIDTH 2"). 2 STIFFENERS FABRICATED AND INSTALLED; PN S55171200204 AND PN S55171200206; 2 STIFFENERS REPLACED WITH OEM PARTS PN S55171200218 AND PN S55171200216.