What was found
FOUND DENT ON L/H HORIZONTAL STAB AT STA 170. GROUNDED - YES. DENT OVER RIB WITH TIPPED FASTENERS FOUND TO BE OUT OF LIMITS WITH B737-900 SRM 55-10-01-1A-1. REMOVED L/H HORIZONTAL STABILIZER LEADING EDGE AND END CAP REF. B737-900 AMM 27-41-21. REMOVED DAMAGED AREA ON L/H HORIZONTAL STABILIZER LEADING EDGE SKIN. FABRICATED REAR DOUBLER AND FILLER OUT OF 2024 T3 .050 P0 # 900961 (DOUBLER) AND 2024T3 .040 P0 1054620. DRILLED INITIAL HOLES IN REAR DOUBLER. REF SRM 55-10-01-2R-1, REPAIR 1. ACCOMPLISHED REPAIR REF. SRM 55-10-01-2R-1. REMOVED AND REPLACED DAMAGED RIB REF. SRM 51-40-27. INSTALLED L/H HORIZONTAL STABILIZER LEADING EDGE AND END CAP REF. AMM 27-41-21.