What was found
ENROUTE FROM RDU TO EGE, DIVERTED TO DEN DUE TO FLAPS FAILURE ANNUNCIATION WHEN FLAPS SELECTED TO 5 '. SLATS EXTENDED, BUT FLAPS DID NOT FULLY EXTEND TO 5 '. RAN ABNORMAL CHECKLIST, FLAPS FAILED TO RESET. EMERGENCY WAS DECLARED IN ROUTE TO DEN AND AIRCRAFT LANDED SAFELY IN DEN. AIRCRAFT WAS AOG IN DENVER . FLAPS WERE INSPECTED AND OPERATIONAL CHECKS COMPLETED NUMEROUS TIMES IAW CESSNA MODEL 750 AMM 27-50-00. NO DEFECTS NOTED.