What was found
L/H SIDE FUSELAGE PRESSURE FLOOR SILL FROM FS 409+128 TO FS 559.0 HAS VISIBLE AREAS OF CORROSION. (C-CHECK RO 9/13/2023) REMOVED CORROSION ON LH SIDE FUSELAGE PRESSURE FLOOR SILL FROM FS409+128 - FS559. FOUND TO BE WITHIN LIMITS. SEE CONTINUATION CARD FOR DETAILS. COMPLIED WITH ALL STEPS 1.2 (A-F) REF REO 601R-53-41-666, REV -C, DATED 2012-11-06 AND COMPLIED WITH ALL STEPS 1-5 REF REO 601R-53-41-3183, REV --, DATED 2023-08-04..PERFORMED LEAK CHECK, LEAK CHECK GOOD.COMPLIED WITH SKYWEST TASK CARD 51-900-1003-SKY.