What was found
AFTER TAKEOFF, GEAR WAS RESTRICTED. GEAR IN TRANSIT LIGHT STAYED ON, AND GEAR DID NOT FULLY GO TO UP AND LOCKED POSITION. GEAR HAD TO BE CRANKED DOWN MANUALLY TO GET 3 IN THE GREEN. ACFT RETURNED TO AIRPORT AND LANDED SAFELY (NO INCIDENT DECLARED). MOTOR HAD BURNED OUT, CAUSING THE ABOVE SITUATION. LOGBOOK RESEARCH DID NOT REVEAL GEAR MOTOR (OR BRUSHES, EVER BEING CHANGED). DATE STAMPED ON MOTOR CASE WAS MAR 1986. (ACFT MFG 1987) MOTOR APPEARED TO BE "ORIGINAL" EXAM OF BRUSHES SHOWED GOO BRUSH LENGTH.