What was found
LT STAB CRACK INDICATION NOTED STA 1.1.90, MEASURES 1 INCH LONG AND LOCATED 19 INCHES FROM L/E (FRONT SPAR). REPAIRED LT HORIZONTAL STABILIZER LOWER SKIN AT STA 101.9 IAW EC/RA 5510-02149. ISSUED DIP TO PERFORM DV & LFEC, REF SRM 55-10-01 REPAIR 11 TABLE 204 AT 56,000 CYCLES & REPETATIVE EVERY 9000 CYCLES THEREAFTER. "Q/C" INSPECT THE LT HORZ STAB SKIN REPAIR AT STA 101.90, 19 INCHES AFT OF L/E FNT SPAR 56,000 FLT CYCLES AFTER REPAIR INSTALLATION (DATE 2/13/2011) PER B737-800 SRM 55-10-01 REPAIR #11 PARA 5. PERFORM A DV INSP AND EXT LOW FREQ EDDY CURRENT (LFEC) AT 9,000 FLT CYC INTERVALS AFTER 56,000 FLT CYC DIP C/N 09223.