Narrative:

We were cleared to taxi to runway 33. During taxi, I noticed that runway 6 and runway 33 were in use. When looking at the SID, I somehow got fixated with the departure procedure for runway 6 which requires a turn to a heading of 075 degrees after takeoff. Runway 33 requires runway heading after departure. After takeoff, I bugged to a heading of 075 degrees and the first officer was turning to that heading when after being xferred to departure they told us to stop turn and turn to a heading of 360 degrees. Although no conflicts existed, I failed to differentiate between the 2 departure headings.

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Original NASA ASRS Text

Title: FLC OF A LEARJET 60 TURNED EARLY AFTER TKOF CONTRARY TO THEIR ASSIGNED SID PROC CAUSING THE DEP CTLR TO STOP THEIR TURN AND ASSIGN A NEW HDG.

Narrative: WE WERE CLRED TO TAXI TO RWY 33. DURING TAXI, I NOTICED THAT RWY 6 AND RWY 33 WERE IN USE. WHEN LOOKING AT THE SID, I SOMEHOW GOT FIXATED WITH THE DEP PROC FOR RWY 6 WHICH REQUIRES A TURN TO A HDG OF 075 DEGS AFTER TKOF. RWY 33 REQUIRES RWY HDG AFTER DEP. AFTER TKOF, I BUGGED TO A HDG OF 075 DEGS AND THE FO WAS TURNING TO THAT HDG WHEN AFTER BEING XFERRED TO DEP THEY TOLD US TO STOP TURN AND TURN TO A HDG OF 360 DEGS. ALTHOUGH NO CONFLICTS EXISTED, I FAILED TO DIFFERENTIATE BTWN THE 2 DEP HDGS.

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.