What was found
GYR - DURING C 08 CHECK DISCOVERED RIGHT HAND HORIZONTAL STAB UPPER SKIN HAS A PREVIOUSLY BLENDED AREA LOCATED 2 INCHES AFT OF FRONT SPAR AT STA 200 MEASURING APPROX 4 INCHES BY 1.56 INCHES BY 0.032 INCHES DEEP. MAINTENANCE REMOVED DAMAGED SKIN AND CORE IAW BOEING 757-200 SRM 51-70-10-2R. FABRICATED CORE AND REPAIR DOUBLERS IAW BOEING 757-200 SRM 51-70-10-2R. INSTALLED FABRICATED REPAIR PARTS ON THE RT HORIZONTAL STAB IAW BOEING 757-200 SRM 51-70-10-2R.