What was found
INSPECTION TYPE: C, MAIN CARGO TRACK STA 1060 TO 1100, LBL 60, 3 EA NUTPLATES CORRODED. REMOVED CORROSION. ORIGINAL MATERIAL THICKNESS .075 MAX LOSS OF .020 WITH .055 REMAINING IS OUT OF LIMITS IAW 53-00-52-1A1. ACCOMPLISHED STEPS OF EA 120230 IR EO B757-5310-46193-A.