What was found
AFTER TAKEOFF THE COPILOT ATTEMPTED TO PUT THE GEAR UP & THE SWITCH WOULD NOT RELEASE FROM THE DOWN POSITION. THEY RETURNED TO THE AIRPORT THEY TOOK OFF FROM. FURTHER INVESTIGATION FOUND THE GEAR HANDLE IS A KNOB, PN 0813502-1, ON A TOGGLE SWITCH PN 8858K44. THE KNOB IS ATTACHED & SCREWED ONTO THE TOGGLE PORTION OF THE SWITCH THAT HAS A SPRING LOADED TOGGLE, TURN THE KNOB TO TIGHT & IT WILL JAM THE SPRING MECHANISM. THE KNOB WAS ADJUSTED & THE SPRING MECHANISM WAS RELEASED TO OPERATE CORRECTLY.