What was found
LAX - ON DEPARTURE, ON GEAR RETRACTION, LEFT BODY GEAR DOOR LIGHT REMAINED ILLUMINATED IN PRIMARY AND ALTERNATE. ACCOMP ABNORM CHECKLIST AND LIGHTS REMAINED ILLUMINATED. AIR TURN BACK. FOUND L/G DOOR SAFETY VLV NOT FULLY ACTUATING. LUBED ALL PUSHRODS AND ATTACHMENTS, CHECKED CABLES AS PER CAUTION IN MM 32-35-01 PAGE 501. PUT ALTERNATE EXTENSION SWITCH TO ARM POSITION TO ENSURE ELECT ACT PROPER POSITION. USING MANUAL RELEASE GEAR DOOR HANDLE ALL OPS AND IND GOOD. PINNED L/G AND CARRIED OUT OPS AND IND CHECK. ALL CHECKS USING GEAR HANDLE AT COCKPIT WERE GOOD. (M)