What was found
R/H HORIZONTAL STABILIZER LOWER SKIN HAS A CRACK INDICATION LOCATED AT STAB STA. 95"- 97.5". ALONG REAR SPAR FASTENERS. (AS MARKED). GROUNDED - YES. EVALUATED RH HORIZONTAL STAB SKIN 5595-5597.5 CRACK FOUND. REPAIRED AREA IAW B737-800 SRM 55-10-01-2R-11. RH HOIZONTAL LE AND TIP REMOVED / INSTALLED IAW AMM 27-41-21, AND AMM 55-10-00. EVALUATED HORIZONTAL SKIN IAW 737 NTM PT. 1 51-00-00 PROC 23 THIS IS A CAT B REPAIR INSP THRESHOLD 56,000 FLIGHT CYCLES.