What was found
CREW REPORTED NLG UNSAFE LIGHT REMAINED ILLUMINATED UPON GEAR RETRACTION. DECLARED AN EMERGENCY. PERFORMED GEAR UNSAFE INDICATION CHECKLIST. ON APPROACH PERFORMED A NORMAL GEAR EXTENSION. GEAR EXTENDED NORMALLY AND EXTINGUISHED NLG UNSAFE LIGHT. LANDED WITHOUT INCIDENT. MX R & R NLG ACTUATING CYLINDER IAW MM 32-32-6 & 32-30-00. OPS AND LEAK CHECKED GOOD DURING EXTENSION AND RETRACTION OF NLG. NLG ACTUATOR WAS REPLACED PRIOR TO THIS TRIP AND INDICATION PROBLEM OCCURRED DURING CLIMB OF THIRD LEG. ON REMOVAL OF NLG ACTUATOR IT WAS DISCOVERED THAT THE UPPER AND LOWER BUSHINGS FOR THE ATTACH POINTS WERE MISSING. EXCESSIVE PLAY RESULTED IN THE UNSAFE INDICATION. REMOVED ACTUATOR HAS BEEN SENT IN FOR A BENCH CHECK AS A PRECAUTION.