What was found
MISDRILLED STR 2R AT STA 500 + 3.900. ACCOMPLISHED PERMANENT REINFORCING STRINGER REPAIR AT STA 500 TO STA 500B, STRINGER 2R AS PER B737 SRM 53-00-03-2R-3 REPAIR 3, NEW STRINGER SECTION P/N BAC1498-153. 0.040" AND STRINGER SPLICES P/N 69-78188-36, P/N 69-78188-37, 0.050" THIS REPAIR IS CATEGORY "B", THE THRESOLD FOR THE STAR OF SUPPLEMENTAL INSPECTIONS IS 22.500 FLIGHT CYCLES AFTER THE INSTALLATION ON THIS REPAIR, DO REPETITIVE INPSECTION EVERY 1600 FLIGHT CYCLES AFTER THE THRESHOLD HAS BEEN REACHED I.A.W B737 SRM 53-00-03-2R-3 REPAIR 3 PARAGRAPH "5".