As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A HEAVY MAINTENANCE CHECK, THE RT HORIZONTAL STABILIZER CLOSING RIB WAS FOUND CRACKED IN TWO PLACES APPROXIMATELY STA XE 26. REMOVED DAMAGED AREA PER SRM 550001 FIG 3. NO CRACKS REMAINING PER 551101 AND FABRICATED DOUBLER PER SRM 550001 FIG 3 AND INSTALLED.