What was found
UPON TAKEOFF, LANDING GEAR WOULD NOT RETRACT. PULLED GROUND CONTROL CIRCUIT BREAKER'S PER COM. FLIGHT CONTINUED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE SERVICED NOSE STRUT AND INSPECTED GEAR CONTROL LEVER, ANTI RETRACTION LATCH AND GROUND SENSING CONTROL MECHANSIM. GEAR CYCLED SEVERAL TIMES AND OPERATION CHECKS GOOD.