What was found
RT FUSELAGE EXTERIOR SKIN 8" FWD OF FS 559+112 AND AT STR 24R HAS MINOR SURFACE CORROSION. REMOVED RIVETS AT RT FUSELAGE EXT SKIN 8" FWD OF FS 559+112 AND AT STR 24R IAW CRJ 200 SRM 51-42-06. INSTALLED 8 NEW SERVICEABLE RIVETS IAW CRJ 200 SRM 51-42-06. UPON FURTHER INVESTIGATION FOUND 3 LOCATIONS TO BE BEYOND SERVICEABLE LIMITS. CORROSION WAS ON DOUBLER P/N 601R39000-59, REQUIRES REPAIR. BLENDED CORROSION IN 3 LOCATIONS IAW BOMBARDIER REO 601R-53-51-081 STEPS 1 & 2. THREE EA RIVETS NEED INSTALLED. INSTALLED RIVETS REF CRJ SRM 51-42-06. PERFORMED EDDY CURRENT INSPECTION ON NEWLY BLENDED AREAS OF RT FUSELAGE SKIN. NO CRACKS FOUND AT THIS TIME. REPORT ATTACHED IAW STEP 4 OF BOMBARDIER REO 601R-53-51-081 AND CRJ NDTM 51-20-06. RESTORE FINISH IS REQUIRED. TOUCHED UP REWORK AREA IAW BOMBARDIER REO 601R-53-51-081 STEP 5. SUPPLEMENTAL-SDR CLOSED 11/17/2008.