What was found
UNSAFE LT MAIN GEAR UP ON DEPARTURE, COMPLIED WITH QRH AND COMFIRMED INDICATION WITH CONFIG PAGE. ALL MLG DOOR CLOSED ON ARRIVAL. PERFORMED T/S IAW FIM 32-30, PAGE 121. PERFORMED SELF TEST ON PSEU MM 31-71-01-2, NO FAULT. PERFORMED VISUAL INSP, NO DEFFECT, AND NO LEAKS FOUND. INSPECT DOOR LATCH INSTALLATION IAW MM 32-34-03. NO DAMAGE FOUND. PERFORMED MLG DOOR ACTUATION IAW MM 32-34-00-2 , THE DOOR OPENED AND CLOSED NORMALLY, ALL INDICATION NORMAL. CHECK HYD SUPPLY ON MAIN LT LANDING DOWN LOCK CYLINDER DURING GEAR DOOR SIMULATION, FOUND HYD PRESSURE, NO TIME FOR MORE T/S. ADJUSTED LT MLG DOOR PROXIMITY SENSOR. FINAL CLOSED.