What was found
(LATE FIND) WHILE INSPECTING FOR AN "OK TO INSTALL" L/H LEADING EDGE, FOUND TWO INTERNAL CRACKS AT STA LES 105.26 VERTICAL, SEGMENTS 3 AND 4. GROUNDED - YES. REPAIRED THE L/H HORIZ STAB AT STA 92.70 3EA LOCATIONS USING MAT BAC1505-100962 T-SECTION, BAC 1490-2793 ANGLE, .012 7075-T6 SHIM PER B737-800 SRM 55-10-09-2R-4. GAINED ACCESS AND ACCOMPLISHED THE HORIZ STAB LOWER SKIN ACCESS PANEL REPAIR USING MAT .071 2024-T3 COVER PLATE, .250 2024-T351 DOUBLER AND SPLICES, AND .071 2024-T3 SHIM PER B737-800 SRM 55-10-01-2R-8. ACCESS PANEL REPAIR IS A CAT "B" REPAIR AND HAS AN INSPECTION THRESHOLD OF 56.000 FLIGHT CYCLES AND AN INTERVAL OF 9,000 FLIGHT CYCLES PER B737-800 SRM 55-10-01-2R-8.5.A. TABLE 203.