What was found
DURING MORNING TEST FLIGHT, LANDING GEAR WAS RETRACTED. NOSE GEAR FAILED TO EXTEND. AFTER SEVERAL ATTEMPTS TO EXTEND THE GEAR THE SYS WAS "BLOWN DOWN". BLOW DOWN FAILED AND THE NR 2 HYD SYS FAILED. ABLE TO PULL NOSE GEAR INTO POSITION. THREE GREEN GEAR LIGHTS, GEAR WAS PINNED AND ACFT LANDED, NORMAL SHUTDOWN PROCEDURES. MX FOUND NOSE WHEEL TO BE 180 DEGREES ROTATED. STRAIGHTENED WHEEL AND RESERVICED STRUT. FUNCTION CHECKED GOOD.