As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT HORIZONTAL STABILIZER STATION 210 UPPER SIDE OF THE WEB STIFFENER AT LEFT ACCESS CUT-OUT HAS TOOLING MARKS 2 EA. INSTALLED REPAIR PLATE, FILLER AND 2 EACH WEB STIFFENERS AT LEFT HORIZONTAL STABILIZER STATION 210 PER B747 SRM 55-10-06 PAGES 8-9 AND 51-30-02 PAGE 8-9.