Narrative:

In cruise flight over stl at FL330. Center was trying to line all aircraft up for arrival. My first officer had to use the restroom. I was by myself when ZKC told me to turn 30 degrees left, then told the aircraft behind me to turn 30 degrees right. For some reason I turned 30 degrees to the right instead of 30 degrees to the left. As soon as I started the turn I thought something was wrong and asked ZKC. They revectored my aircraft. Supplemental information from acn 472260: I believe fatigue was the major contributing factor. The crew was scheduled for an 11 1/2 hour duty day, and 7 1/2 hours of flying time. The captain mistakenly turned the aircraft 30 degrees to the right. There were no traffic conflicts and ATC had us continue on that heading.

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Original NASA ASRS Text

Title: A B757 CARGO FLT IS TURNED THE WRONG WAY BY THE CAPT, THE ONLY PLT IN THE COCKPIT, WHEN HE RECEIVED A SPACING VECTOR FROM ZKC, MO.

Narrative: IN CRUISE FLT OVER STL AT FL330. CTR WAS TRYING TO LINE ALL ACFT UP FOR ARR. MY FO HAD TO USE THE RESTROOM. I WAS BY MYSELF WHEN ZKC TOLD ME TO TURN 30 DEGS L, THEN TOLD THE ACFT BEHIND ME TO TURN 30 DEGS R. FOR SOME REASON I TURNED 30 DEGS TO THE R INSTEAD OF 30 DEGS TO THE L. AS SOON AS I STARTED THE TURN I THOUGHT SOMETHING WAS WRONG AND ASKED ZKC. THEY REVECTORED MY ACFT. SUPPLEMENTAL INFO FROM ACN 472260: I BELIEVE FATIGUE WAS THE MAJOR CONTRIBUTING FACTOR. THE CREW WAS SCHEDULED FOR AN 11 1/2 HR DUTY DAY, AND 7 1/2 HRS OF FLYING TIME. THE CAPT MISTAKENLY TURNED THE ACFT 30 DEGS TO THE R. THERE WERE NO TFC CONFLICTS AND ATC HAD US CONTINUE ON THAT HDG.

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.