As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE C-CHECK INSPECTION, A CRACK WAS DETECTED AT THE LEFT HAND LEADING EDGE HORIZONTAL STABILIZER INBOARD SIDE INTERIOR PANEL 2ND RIB. REPAIR ACCOMPLISHED STOP DRILLED CRACK, FABRICATION AND INSTALLATION REPAIR ANGLE IN ACCORDANCE WITH DOUGLAS STRUCTURAL REPAIR MANUAL AND ENGINEERING ORDER 55-DC8-3025.