What was found
DURING A D-CHECK. SIAE REPORTED CORROSION IN FUSELAGE SKIN ADJACENT TO AND BELOW THE LAP JOINTS AT MULTIPLE LOCATIONS. NO ACTION REQUIRED - THIS PART WAS PREVIOULY ACCOMPLISHED PER NRCS 103, 107, 108, 109, 181, 182, 184, 185, 186, 188, 190, 292, 374, 392, 395, 490, 491, 492, 494, 495, 497, 627, AND 629 (FIGURE 1),NR N355MC-11-014 (FIGURE2) AND SR 1-1798770437. APPROVAL PROVIDED BY 8100-9 DATED FEBRUARY 18, 2011 (FIGURE 3).