What was found
DURING U/S INSP OF HORIZ STAB COSTANT AND OUTER SECTION SKIN PANEL, FOUND CRACKED PANEL: P/N7228-1, POSITION 6&7, P/N7229-1 POSITION 2 AND P/N7226-1 POSITION 18, SEE ATTACHED SHEET FOR DETAIL, POSITION 6, 7 AND 2 CRACKS ARE HANDLED BY NRC N00628. POSITION 18 CRACK NEEDED TO BE HANDLE BY THIS NRC. REMOVED AND REPLACED PANEL ALC7226-1 IAW SB55-16 GROUP 2 (DC10-30 SERIES). FOLLOWING INSTRUCTIONS OF PARA "SINGLE PANEL REPLACEMENT OF CONSTANT SECTION SKIN PANELS" AND FIGURE 6.