Narrative:

While being vectored for the ILS runway 18R approach at cvg, we were assigned a vector of 120 degrees at 2500 ft. The first officer (PNF) and I, after about 2 mins on this vector, discussed our closure rate on the final approach course and agreed the vector would take us through the final. Our intercept angle was 64 degrees and our speed 170 KIAS. The PNF attempted to query the controller, but high volume radio traffic would not allow it. As we passed through the course, the controller said, 'I thought I cleared you to join, what is your heading?' we responded with our heading, 120 degrees. The controller asked if we had the field in sight. We responded that we did. The controller re-vectored us to 210 degrees and cleared us for the visual approach. To our knowledge, no conflict occurred. This situation is probably the result of high workload imposed on the controller. It seems these events occur more frequently on weekends and at 'off' hours. My guess is ATC staffing is reduced at these times. This event occurred on a sunday morning.

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Original NASA ASRS Text

Title: CL65 FLT CREW ON VECTOR TO CVG ILS RWY 18R ARE GIVEN A 64 DEG INTERCEPT AND OVERSHOOT FINAL APCH COURSE.

Narrative: WHILE BEING VECTORED FOR THE ILS RWY 18R APCH AT CVG, WE WERE ASSIGNED A VECTOR OF 120 DEGS AT 2500 FT. THE FO (PNF) AND I, AFTER ABOUT 2 MINS ON THIS VECTOR, DISCUSSED OUR CLOSURE RATE ON THE FINAL APCH COURSE AND AGREED THE VECTOR WOULD TAKE US THROUGH THE FINAL. OUR INTERCEPT ANGLE WAS 64 DEGS AND OUR SPD 170 KIAS. THE PNF ATTEMPTED TO QUERY THE CTLR, BUT HIGH VOLUME RADIO TFC WOULD NOT ALLOW IT. AS WE PASSED THROUGH THE COURSE, THE CTLR SAID, 'I THOUGHT I CLRED YOU TO JOIN, WHAT IS YOUR HEADING?' WE RESPONDED WITH OUR HEADING, 120 DEGS. THE CTLR ASKED IF WE HAD THE FIELD IN SIGHT. WE RESPONDED THAT WE DID. THE CTLR RE-VECTORED US TO 210 DEGS AND CLRED US FOR THE VISUAL APCH. TO OUR KNOWLEDGE, NO CONFLICT OCCURRED. THIS SIT IS PROBABLY THE RESULT OF HIGH WORKLOAD IMPOSED ON THE CTLR. IT SEEMS THESE EVENTS OCCUR MORE FREQUENTLY ON WEEKENDS AND AT 'OFF' HRS. MY GUESS IS ATC STAFFING IS REDUCED AT THESE TIMES. THIS EVENT OCCURRED ON A SUNDAY MORNING.

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.