What was found
RIGHT HORIZONTAL STABILIZER LOWER SKIN CRACK NOTED IN SECTION STAB STA 92.70 AND STAB STA 101.90 7 INCH FROM AFT SPAR RIVETS. CRACK APPROXIMATELY 1.1 INCH IN LENGTH AND END POINTS, MARKED IN RED. GROUNDED-YES. DAMAGE CUTOUT AND REPAIRED ON RT HORIZ STAB LOWER SKIN AT SECTION STAB STA 92:70 AND STAB STA 101.90, IAW B737-800 SRM 55-10-01-2R-11. TOPCOATED IAW B737-800 AMM 51-21-99. THIS IS CATEGORY B REPAIR, INSPECTION THRESHOLD IS 56,000 FLIGHT CYCLES.