What was found
CORROSION ON SEVERAL AREAS OF FWD FUSELAGE MAIN CABIN LT FLOOR TRACK, PN 170-03264-001, BETWEEN FRAME 15 & 19 AT Y= -273, X=4520-5645, Y= -260. R & R FWD CABIN LT FLOOR TRACK IAW SRM 51-41-01, SRM 51-43-03, & SRM 51-41-02 ON WO 19665071E1 IAW EO E175-53MR-061 REV 5.