What was found
CORROSION AROUND FASTENER ON FUSELAGE BELLY SKIN FS 559+16, STR 26R APPROXIMATELY AS MARKED, C-CHECK, RO 3/23/15. REMOVED CORROSION FROM EXTERIOR FUSLEAGE BELLY SKIN FS 559+16, STR 26R, AND BLENDED SMOOTH IAW STS EA. BEGINNING MATERIAL THICKNESS IN DAMAGE AREA IS 0.063". REMAINING THICKNESS AFTER BLENDING SMOOTH IS 0.057". MAXIMUM MATERIAL LOSS FROM BLEND REPAIR IS 0.006". MINIMUM ALLOWED MATERIAL THICKNESS AFTER BLEND REPAIR IS 0.058" +/- 0.002" IAW STS EA . REPAIR IS WITHIN ALLOWABLE LIMITS OF STS EA.