What was found
FOUND CORROSION AT TWO LOCATIONS ON THE EXTERIOR SURFACE UPPER SKIN OF THE LT HORIZONTAL STABILIZER, ONE AREA ABOVE THE INBOARD ELEVATOR HINGE AND ONE AREA AT THE OTBD ELEVATOR CUTOUT. MECHANICALLY BLENDED AREAS, PERFORMED ULTRASONIC THICKNESS AND EDDY CURRENT CRACK INSPECTIONS FOR REPAIR DISPOSION. REPLACED BLENDED FASTENERS AS REQUIRED, TREATED, AND TOP COATED AREAS IAW REPAIR DEFINITION S-750-0190/14RD.