Narrative:

During a visual approach to runway 35R at sdf, I overshot my turn to final, and passed through the extended centerline of the runway. This would have caused my aircraft to infringe on the airspace of another aircraft on approach to runway 35L if I had not corrected back to the centerline. The tower controller saw the potential conflict, warned our flight of the deviation, and issued a traffic alert to the other aircraft.

Google
 

Original NASA ASRS Text

Title: DC9 CREW OVERSHOT TURN ON FINAL FOR A VISUAL.

Narrative: DURING A VISUAL APCH TO RWY 35R AT SDF, I OVERSHOT MY TURN TO FINAL, AND PASSED THROUGH THE EXTENDED CTRLINE OF THE RWY. THIS WOULD HAVE CAUSED MY ACFT TO INFRINGE ON THE AIRSPACE OF ANOTHER ACFT ON APCH TO RWY 35L IF I HAD NOT CORRECTED BACK TO THE CTRLINE. THE TWR CTLR SAW THE POTENTIAL CONFLICT, WARNED OUR FLT OF THE DEV, AND ISSUED A TFC ALERT TO THE OTHER ACFT.

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.