Narrative:

We were on a stand-up (continuous duty) trip with approximately 4 1/2 hours of sleep. On initial contact with approach, we were told to expect runway 18R. Coming from the southeast, usually runway 18L is assigned, but occasionally ATC will assign runway 18R (usually stating that it will be a left or right downwind). ATC did not state what downwind to expect. We were switched to another controller and told to descend to 7000 ft. I do not remember if she reaffirmed runway 18R as the assigned runway. Being a VFR day and little traffic, we were told to descend and given a turn to base and cleared for the visual approach. We hustled down and turned final inside the OM. We were cleared to land and performed the landing checks. I noticed that we were on GS but we looked low and short. I became preoccupied with this conflicting information and failed to notice that the localizer was deflected full right. The first officer stated this was not runway 18R, at which time I called for a go around. We performed a go around and notified tower. Tower asked what the reason for the go around was and we stated we were lined up with the wrong runway. Contributing factors: physically and mentally tired (the main reason). Lack of controller confirming runway (though I had briefed the current runway).

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Original NASA ASRS Text

Title: CL65 FLC LINE UP WITH THE WRONG PARALLEL RWY AND SUBSEQUENTLY THE FO NOTICES THE ERROR AND CALLS FOR A GAR.

Narrative: WE WERE ON A STAND-UP (CONTINUOUS DUTY) TRIP WITH APPROX 4 1/2 HRS OF SLEEP. ON INITIAL CONTACT WITH APCH, WE WERE TOLD TO EXPECT RWY 18R. COMING FROM THE SE, USUALLY RWY 18L IS ASSIGNED, BUT OCCASIONALLY ATC WILL ASSIGN RWY 18R (USUALLY STATING THAT IT WILL BE A L OR R DOWNWIND). ATC DID NOT STATE WHAT DOWNWIND TO EXPECT. WE WERE SWITCHED TO ANOTHER CTLR AND TOLD TO DSND TO 7000 FT. I DO NOT REMEMBER IF SHE REAFFIRMED RWY 18R AS THE ASSIGNED RWY. BEING A VFR DAY AND LITTLE TFC, WE WERE TOLD TO DSND AND GIVEN A TURN TO BASE AND CLRED FOR THE VISUAL APCH. WE HUSTLED DOWN AND TURNED FINAL INSIDE THE OM. WE WERE CLRED TO LAND AND PERFORMED THE LNDG CHKS. I NOTICED THAT WE WERE ON GS BUT WE LOOKED LOW AND SHORT. I BECAME PREOCCUPIED WITH THIS CONFLICTING INFO AND FAILED TO NOTICE THAT THE LOC WAS DEFLECTED FULL R. THE FO STATED THIS WAS NOT RWY 18R, AT WHICH TIME I CALLED FOR A GAR. WE PERFORMED A GAR AND NOTIFIED TWR. TWR ASKED WHAT THE REASON FOR THE GAR WAS AND WE STATED WE WERE LINED UP WITH THE WRONG RWY. CONTRIBUTING FACTORS: PHYSICALLY AND MENTALLY TIRED (THE MAIN REASON). LACK OF CTLR CONFIRMING RWY (THOUGH I HAD BRIEFED THE CURRENT RWY).

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.