What was found
LEFT LEADING EDGE #3 SLAT INBD SLAT TRACK COVER PLATE CRACKED. INSTALLED NEW PART IAW B757-200, SRM 51-40-02-0G-0. INSPECTED AND VERIFIED INSTALLATION OF NEW LEFT LEADING EDGE #3 SLAT INBD SLAT TRACK COVER PLATE IAW B757-200, SRM 51-40-02-0G-0. REVIEWED.