LEFT MAIN LANDING GEAR ASSEMBLY MAIN LANDING GEAR EXTENSION AND RETRACTION MECHANISM. (INCLUDES RETRACTION ACTUATORS. UP LOCK ACTUATORS. DOWN LOCK ACTUATORS. UP LOCK MECHANISM. AND DOWN LOCK MECHANISM) 161A1100-35 MOS 32.050 MAL00295Y0146 HRS1MSC REF: BIC 32-150-00-01 AFL 3000 35.27 29-AUG-2011