What was found
DURING C-CHECK, RT WING/FUSELAGE FILLET HAS CRACKS AT RIVET FRAME 48, 10MM AFT AND 6MM FWD, REQUIRES FINAL REPAIR IAW EC5320-01707. MAINTENANCE REPAIRED RT WING/FUSELAGE FILLET AT FRAME 48 IAW EC5320-01707 AND SRM 53-23-12. THE ACFT WAS APPROVED FOR RETURN TO SERVICE.