What was found
UPON ADVANCING THE THRUST LEVERS, TAKE OFF WARNING SOUNDED, FLAPS 15, TRIM 4.6, AND SPEED BRAKE FULL FORWARD. REPAIRED WIRE TOUCHING TO GROUND AT SWITCH S867 (SPEED BRAKE WARNING S/W) IAW B-727 MM 31-26-26. GROUND OPS. CHECKED NORMAL IAW B-727 M/M 31-26-00.