As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RH HORIZONTAL STAB AFT UPPER SPAR CAP HAS EVIDENCE OF CORROSION INTERGRANULAR CORROSION AT STAB STATION 304.19 ENDING AT +10 AT BUTT LINE 254.66. SPAR CORD IS EXFOLIATED COMPLETELY THROUGH. DAMAGE MEASURES 10'X 1'. REFERENCE TTG8Q00V2E87 FOR ORIGINAL FAULT.