What was found
(CAN) FOLLOWING TAKE-OFF THE PILOT COULD NOT GET THE LANDING GEAR TO FULLY RETRACT OR EXTEND. MANUAL EXTENSION WAS REQUIRED. DURING RETRACTION TEST, MAINTENANCE OBSERVED THE GEARBOX WAS NOISY AND THE NOSEGEAR ACTUATOR WAS AT MAX LIMITS END PLAY. THE NOSE GEAR ACTUATOR HAD 310 CYCLES ON IT SINCE OVERHAUL.THE ACTUATOR & GEARBOX WERE REPLACED. SUPPLEMENTAL: STRIP REPORT FOR GEAR BOX INDICATED THAT THE BEARINGS WERE ROUGH AND NOISY AND REPLACED.STRIP REPORTFOR ACTUATOR INDICATED THAT THE NUT ENDPLAY EXCEEDED 0.010 AND REPLACED. NUT PREVIOUSLY SUPPLIED BY KADAX ON W4539.