What was found
RIGHT HAND HORIZONTAL STABILIZER FORWARD UPPER SLIDE SEAL PLATE IS CRACKED. REMOVED RIGHT HAND HORIZONTAL STABILIZER FWD UPPER SLIDE SEAL PLATE, IAW AMM 53-31-31-000-802 STEP 2D AND E. 56260U 15OCT20. INSTALLED RT HORIZ STAB FWD UPPER SLIDE SEAL PLATE, IAW AMM 53-31-31-400-802 STEP 3E 56260U 15OCT20.