As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HORIZONTAL STAB UPPER AFT CRACK INDICATION HOLE/HOLE DAMAGE AT LT SPLICE PLATE UPPER PLATE UPPER INBOARD OF LBL 45.3. AFT OF T/E AFT OUTBOARD FASTENER HOLE (CENTER SECTION). WAS NOTED DURING OPEN HOLE HFEC (NDT) COULD NOT ACQUIRE GOOD HFEC INDICATION DUE TO DAMAGED HOLE. REAMED DAMAGED HOLE TO FIRST OVERSIZE (.388-.391) IAW SB 747-55A2050. NDT FINDS NO DEFECTS. BOLTS INSTALLED ON CARD 8010 / 8011.