What was found
FUSELAGE STRUCTURE: WHILE ENROUTE AT 21,000 FT WE ENCOUNTERED SEVERE TURBULENCE THAT LASTED FOR APPROX. 15 SECONDS. THERE DOESN'T APPEAR TO BE ANY VISUAL DAMAGE TO THE AIRCRAFT. CORRECTIVE ACTION; COMPLETED UNSCHEDULED: SEVERE TURBULENCE INSPECTION/CHECK. PERFORMED CVDR DL AND SENT FOR REVIEW. FOUND AIRCRAFT WAS NOT OPERATED OUTSIDE THE THE NORMAL ACCELERATION LIMITATIONS AND NO FURTHER INSPECTIONS REQUIRED. ALL !AW PHENOM 300 AMM 05-50-20.