AN ATR42 FLC LANDS ON THE CLOSED PORTION OF RWY 1 AT SAW; MI. THE PIC HAD NOT SEEN THE NOTAM INFO RELATED TO THE CLOSED PORTION OF THAT RWY DURING THE PREPARATION FOR THE FERRY FLT.

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AFTER A NOISY HOTEL NIGHT'S REST ON A TRIP THAT GOT INTERRUPTED ON EVERY DAY OF THE 4 DAY TRIP. WE WERE CALLED 25 MINS PRIOR TO OUR SHOW TIME AND TOLD OUR 1ST FLT WAS CANCELED AND WE WERE TO FERRY AN ACFT TO OUR MAINT FACILITY. UPON ARR AT ARPT; I TALKED WITH THE MECH ABOUT THE STATUS OF THE ACFT. HE PROCEEDED TO EXPLAIN WHAT WAS WRONG. HE WAS VERY 'CHATTY' AND KEPT TALKING WHILE I REVIEWED MY PART 91 RELEASE. WHEN I REVIEWED IT; I MISSED A NOTAM ABOUT A PORTION OF THE RWY BEING CLOSED. IT IS A 12000 FT LONG RWY AND THE S 6000 FT WAS CLOSED. WE DEPARTED AND HEARD ANOTHER PLANE CALL ON THE RADIO THAT HAD JUST DEPARTED OUR DEST. I ASKED THE PLT ABOUT THE WX AND HE SAID IT WAS FINE. WE ACQUIRED THE ARPT VISUALLY WHEN WE WERE SW AND ENTERED A L BASE TO THE RWY. WE NOTICED SOMETHING TO THE R ON THE TXWY AND DETERMINED IT WAS A TRUCK. NOT UNUSUAL AT THIS UNCTLED FIELD. WE WATCHED THE TRUCK AND AS WE CROSSED THE THRESHOLD WE NOTICED A FADED YELLOW 'X' ON THE RWY. WE BOTH MENTIONED IT BUT IT DID NOT MAKE SENSE THAT THE RWY IS CLOSED (OTHER ACFT JUST DEPARTED). BEFORE WE COULD DECIDE TO GAR WE TOUCHED DOWN. I THEN SAW THE BARRICADES 6000 FT DOWN THE RWY. I CONSIDERED A TOUCH AND GO BUT COULD NOT JUDGE THE DISTANCE SO I STOPPED THE ACFT. WE THEN REALIZED IT WAS THE CLOSED PORTION. FACTORS ARE: BEING TIRED; BEING HURRIED DUE TO APCHING WX AND THE IMPROPER MARKINGS ON THE RWY. AN 'X' MEANS THE ENTIRE RWY IS CLOSED. THAT DID NOT MAKE SENSE THOUGH; SO WE LANDED. IT WAS A DISPLACED THRESHOLD. SUPPLEMENTAL INFO FROM ACN 405542: THE CAPT WAS ON THE PHONE WITH DISPATCH SEVERAL TIMES TO CORRECT OUR RELEASE. WE WERE CLRED FOR A VISUAL; SO THE CAPT CANCELED OUR IFR AND WE SET UP FOR AN APCH TO RWY 1. THE CAPT CONTACTED COMPANY AND MADE SEVERAL UNANSWERED CALLS TO UNICOM. IN THE PAST THEY HAVE NORMALLY ALWAYS ANSWERED. THE SUN WAS IN OUR EYES; AND AS WE TURNED BASE TO FINAL WE NOTICED AN OBJECT OFF TO THE R OF THE RWY THRESHOLD; WE IDENTIFIED IT AS A TRUCK. OUR ATTN WAS FOCUSED ON MAKING SURE THAT HE DID NOT CROSS THE RWY. THE CAPT SPOKE WITH THE CONTRACTORS; WHOM WERE NOT OVERLY CONCERNED; THEY REMOVED THE BARRIERS AND WE TAXIED TO OUR HANGAR. THERE WAS NO DAMAGE TO PROPERTY; PERSONNEL AND EQUIP. THE RWY WAS CLR OF ANY DEBRIS. THE 'X' ON THE RWY WAS PLASTIC HELD DOWN BY ROCKS ON A CONCRETE SURFACE MAKING IT HARD TO SEE WITH THE SUN REFLECTING OFF IT. THE ARPT IS UNCTLED AND THE ONLY OTHER TIMES I HAVE LANDED THERE WERE AT NIGHT WITH SNOW ON THE RWYS. THE 'X' LOOKED LIKE IT WAS ONCE THERE BUT HAD BEEN PARTIALLY REMOVED; THERE WAS NO WAY TO CONFIRM THIS AS THERE HAD ALWAYS BEEN SNOW COVERING IN THE PAST.