As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS IN BASE MAINTENANCE. RIGHT HORIZONTAL STABILIZER RIB AT STABILIZER STA 92.70 HAS CRACKS IN 3 VERTICAL STIFFENERS AND THE LOWER INBD FWD FLANGE. REPAIRED VERTICAL STIFFENERS IAW SRM 55-10-09-2R, REPAIR 4 AND FLANGE IAW EA 261842.