What was found
RIGHT HORIZONTAL STABILIZER LOWER SKIN HAS CRACK INDICATION INBOARD OF STAB STA 92.70 AS MARKED. GROUNDED - YES. ACCOMPLISHED REPAIR ON R/H HORIZONTAL STAB INCORPORATED NEW DOUBLER WITH EXISTING DOUBLER FROM STA 92.70 TO STA 102.70 IAW B737-NG SRM 55-10-01-2R-11. THIS IS A CAT B REPAIR, INSPECTION OF 56,000 TOTAL FLIGHT HOURS, INSPECTION 9,000 FLIGHT CYCLES.