What was found
(CAN) LOW OIL PRESSURE ON FINAL APPROACH, LANDING GEAR LIGHTS WENT OUT, BUT GEAR DOWN WAS CONFIRMED BY ALTERNATE INDICATION, PIN. ON GROUND, AT APPROXIMATELY AT THE TIME OF ENGAGING THE THRUST REVERSERS, THE ENGINE LOW OIL PRESSURE INDICATION CAME ON AND SIMULTANEOUSLY, THE CREW SAW UNUSUAL VALUES OF N2, 28-30 PERCENT, SUB IDLE.