What was found
LEFT MAIN GEAR DID NOT SHOW DOWN AND LOCKED (GREEN LIGHT) UPON MANUAL GEAR EXTENSION GOT NORMAL GEAR INDICATION, BUT AUTO BRAKE AND ANTI-SKID BREAKERS POPPED. LUBRICATED LEFT GEAR ASSEMBLY REPLACED LEFT MAIN GEAR UPLOCK ACTUATOR. PERFORMED NORMAL AND MANUAL GEAR EXTENSION, OPERATES NORMAL PER AMM 32-32-41. PERFORMED OPERATIONAL CHECK OF ANTI-SKID SYSTEM AND AUTO BRAKE SYSTEM, BOTH NORMAL PER AMM 32-42-00 AND 32-43-01. ROTABLE PARTS CHANGE WAS INDICATED - ACTUATOR, MLG PART NUMBER 65-44810-6.