As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE UPPER SKIN OF THE LT HORIZONTAL STABILIZER WAS FOUND WITH A .75 INCH LONG CRACK AT FS 80 AT THE RUNOUT OF STRINGER 31. THE CRACK WAS ROUTED OUT OF THE SKIN WITH A 1.5 INCH DIA HOLE AND REPAIRED WITH AN ALUMINUM DOUBLER AND TRIPLER PER ER/A 367701-14 AND L1011 SRM 55-15-00, FIG 802.