Narrative:

Upon accepting a visual approach to land VFR at dfw from the west side, we set up for runway 18R. The approach controller gave us runway 17C instead and we set up navaids for runway 17C visual. After clearing for approach to runway 17C, controller called B737 traffic on runway 18L. I started to line up on runway 18L following the traffic. The PNF switched to east tower frequency 126.55. We were well outside the OM, when tower asked if we were with him. That's when I noticed I was lined up on runway 18R instead of runway 17C. He could see the mistake and I immediately crossed over to line up on runway 17C. He then gave us clearance to land on runway 17R which we landed on uneventfully. There was no traffic conflict or known violation, but I had accidentally lined up on the wrong runway. Contributing factors: our plane had been broken the day before and we had to deadhead to our destination that evening. That left us to use reduced rest for the next day which was almost 7 hours of flying. We did receive compensatory rest the next day. I believe I was not alert and fatigued when I made this mistake. The PNF was brand new and probably did not notice the mistake immediately. He was also on reduced rest (8 hours) and may have been fatigued too.

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Original NASA ASRS Text

Title: COMMUTER JET CREW LINED UP ON THE WRONG RWY AFTER BEING CLRED FOR THE VISUAL AT DFW.

Narrative: UPON ACCEPTING A VISUAL APCH TO LAND VFR AT DFW FROM THE W SIDE, WE SET UP FOR RWY 18R. THE APCH CTLR GAVE US RWY 17C INSTEAD AND WE SET UP NAVAIDS FOR RWY 17C VISUAL. AFTER CLRING FOR APCH TO RWY 17C, CTLR CALLED B737 TFC ON RWY 18L. I STARTED TO LINE UP ON RWY 18L FOLLOWING THE TFC. THE PNF SWITCHED TO E TWR FREQ 126.55. WE WERE WELL OUTSIDE THE OM, WHEN TWR ASKED IF WE WERE WITH HIM. THAT'S WHEN I NOTICED I WAS LINED UP ON RWY 18R INSTEAD OF RWY 17C. HE COULD SEE THE MISTAKE AND I IMMEDIATELY CROSSED OVER TO LINE UP ON RWY 17C. HE THEN GAVE US CLRNC TO LAND ON RWY 17R WHICH WE LANDED ON UNEVENTFULLY. THERE WAS NO TFC CONFLICT OR KNOWN VIOLATION, BUT I HAD ACCIDENTALLY LINED UP ON THE WRONG RWY. CONTRIBUTING FACTORS: OUR PLANE HAD BEEN BROKEN THE DAY BEFORE AND WE HAD TO DEADHEAD TO OUR DEST THAT EVENING. THAT LEFT US TO USE REDUCED REST FOR THE NEXT DAY WHICH WAS ALMOST 7 HRS OF FLYING. WE DID RECEIVE COMPENSATORY REST THE NEXT DAY. I BELIEVE I WAS NOT ALERT AND FATIGUED WHEN I MADE THIS MISTAKE. THE PNF WAS BRAND NEW AND PROBABLY DID NOT NOTICE THE MISTAKE IMMEDIATELY. HE WAS ALSO ON REDUCED REST (8 HRS) AND MAY HAVE BEEN FATIGUED TOO.

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.