What was found
AFTER TAKEOFF AND GEAR RETRACTION RED GEAR UNLOCK LIGHT REMAINED ILLUMINATED. JACKED AIRCRAFT. WITH PORTABLE MULE, UNABLE TO DUPLICATE DISCREPENCY. OPS AND RIG CHECK GOOD OF UPLOCK SWITCHES. CHECKED GEAR RELEASE CABLE TENSION, RIG GEAR UPLOCK HOOK/ROLLER ENGAGEMENT, CHECKED GOOD. FOUND PLAY IN LT MLG DOOR IN RETRACTED POSITION. ADJUSTED ROD END ON DOOR SIDE ON TURN IN. OPS AND CLEARANCE CHECK GOOD. WORKED REF MM 32-10-00.