Msn controller described an unexpected turn by an inbound corporate jet after being cleared for a vi...

Narrative:

Falcon 2000; inbound from the west; cleared visual approach runway 18. Told falcon 2000 to keep speed up; number 1 [for approach]. Still at 7;000 ft. 12 west of the airport; re cleared visual approach; a hint that he should start his descent and shipped to tower. CRJ700 being vectored in from the southeast; number 2; turned northbound to allow falcon 2000 time to descend. Spacing started to look good so CRJ700 was cleared visual runway 21. Falcon 2000 turned northbound unexpectedly as he's too high for the runway. CRJ700 was canceled visual approach maintain 4;000 ft. [Issued] CRJ700 a 270 vector heading for visual approach to runway 18 for the sequence. Called tower on the land line told falcon 2000 to turn inbound. Falcon 2000 failed to respond; CRJ700 turned north to avoid conflict; issued traffic; calls falcon 2000 in sight; told to maintain visual separation; cleared visual approach runway 18. CRJ700 acknowledged. Mistakes: assuming the pilot would fly a normal descent profile to a right base. Training in progress on local control [therefore] response time to falcon 2000 delayed. Extra distractions; an F-16 exercise involving circling a C-172; inbound; they were number 3; but C-172 was unsure about his descent profile. Vector sequence on what is shown on radar; not on anticipating pilot behavior.

Original NASA ASRS Text

Title: MSN Controller described an unexpected turn by an inbound corporate jet after being cleared for a Visual Approach; requiring additional vectors to a succeeding aircraft.

Narrative: Falcon 2000; inbound from the west; cleared Visual Approach Runway 18. Told Falcon 2000 to keep speed up; number 1 [for approach]. Still at 7;000 FT. 12 west of the airport; re cleared Visual Approach; a hint that he should start his descent and shipped to Tower. CRJ700 being vectored in from the southeast; number 2; turned northbound to allow Falcon 2000 time to descend. Spacing started to look good so CRJ700 was cleared visual Runway 21. Falcon 2000 turned northbound unexpectedly as he's too high for the runway. CRJ700 was canceled Visual Approach maintain 4;000 FT. [Issued] CRJ700 a 270 vector heading for Visual Approach to Runway 18 for the sequence. Called Tower on the land line told Falcon 2000 to turn inbound. Falcon 2000 failed to respond; CRJ700 turned north to avoid conflict; issued traffic; calls Falcon 2000 in sight; told to maintain visual separation; cleared Visual Approach Runway 18. CRJ700 acknowledged. Mistakes: assuming the pilot would fly a normal descent profile to a right base. Training in progress on Local Control [therefore] response time to Falcon 2000 delayed. Extra distractions; an F-16 exercise involving circling a C-172; inbound; they were number 3; but C-172 was unsure about his descent profile. Vector sequence on what is shown on RADAR; not on anticipating pilot behavior.

Data retrieved from NASA's ASRS site as of July 2013 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.

Attributes
ACN	1049031
Time
Date	201211
Local Time Of Day	1801-2400
Place
Locale Reference	MSN.TRACON
State Reference	WI
Aircraft 1
Make Model Name	Falcon 2000
Flight Phase	Descent
Route In Use	Visual Approach
Flight Plan	IFR
Aircraft 2
Make Model Name	Regional Jet 700 ER/LR (CRJ700)
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Route In Use	Vectors
Flight Plan	IFR
Person 1
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types

Msn controller described an unexpected turn by an inbound corporate jet after being cleared for a visual approach; requiring additional vectors to a succeeding aircraft.