What was found
DURING HARD LANDING INSPECT, FOUND SKIN PNL AT STA 1961 - STA 2161 STR 34R - STR 46R HAS WRINKLES OVER THE ENTIRE SKIN (MEASURING .020 - .030 IN DEPTH) (FS 1961 - FS 1980 STR 42R - STR 46R MEASURE .10 IN DEPTH). INSTALLED ALUMINUM SHIMS BETWEEN THE EXISTING SKIN AND STR 43 AND STR 44 (2024-T3). REMOVED ALL EXISTING HI-LOK FASTENERS ON THE DAMAGED AREAS AND REPLACED WITH LIKE KIND HI-LOK FASTENERS OF .015625 INCH OVERSIZE DIAMETER. ALL REMOVED RIVETS, REPLACED WITH LIKE KIND RIVETS IAW B747 SRM 51-30-02. MUST BE REINSPECTED EVERY 3000 CYCLES IAW EA 97-136 AND BOEING 8110-3 DATED 18 MAY 97. BOEING MM 5-51-05. NON-ROUTINE TASK CARD NR 098232.