What was found
WITH GEAR HANDLE UP, LEFT MAIN GEAR INDICATED UNSAFE (RED LIGHT). LEFT MAIN RED AND GREEN GEAR LIGHTS ILLUMINATED WITH GEAR HANDLE OFF. WITH GEAR EXTENDED ALL INDICATIONS SAFE AND OK HYD PRESS AND QTY NORMAL. REMOVED AND REPLACED LT MAIN GEAR UPLOCK SENSOR PER M/M, OPS AND ADJUSTED PER M/M.