Approach controller providing OJT described a multiple aircraft conflict event involving intersectin...

Narrative:

Aircraft X (BE40) was completing a VOR/DME runway xy approach with another military beechjet on an ASR (airport surveillance radar) runway zz approach; circling to runway yx. There was another VFR military beechjet approaching from the east for an initial/overhead approach to runway yx. There was also a cessna 172 following a pipeline; low level (3;800 ft) south of the airport; passing approximately 3 miles southeast of runway yx. The circling airplane ended up making a wider circling turn than anticipated and conflicted with aircraft X. I told the tower to send the circling beechjet south climbing to 5;000 ft. The beechjet made a wider turn southbound that anticipated and ended up being head on with aircraft X at the same altitude. I issued traffic information as soon as possible; but the pilots did not see the other traffic. The cessna had climbed up to 4;300 ft complicating the situation. The beechjet doing the overhead approach had descended into the other airplanes as well. Recommendation: tell the military pilots that we cannot allow procedure turn approaches or any other full procedure approaches with this type of volume. Instead of me telling the tower to send the circling airplane south; I should have climbed the airplane I was talking too and resolved the situation that way. I also allowed the trainee to let the situation develop into a bad situation that I could not fix in a timely enough manner. Better supervision of the operations would also be helpful.

Original NASA ASRS Text

Title: Approach Controller providing OJT described a multiple aircraft conflict event involving intersecting runways; military maneuvers; and several approach procedures including a circle to land.

Narrative: Aircraft X (BE40) was completing a VOR/DME Runway XY approach with another military Beechjet on an ASR (Airport Surveillance Radar) Runway ZZ approach; circling to Runway YX. There was another VFR military Beechjet approaching from the east for an initial/overhead approach to Runway YX. There was also a Cessna 172 following a pipeline; low level (3;800 FT) south of the airport; passing approximately 3 miles southeast of Runway YX. The circling airplane ended up making a wider circling turn than anticipated and conflicted with aircraft X. I told the Tower to send the circling Beechjet south climbing to 5;000 FT. The Beechjet made a wider turn southbound that anticipated and ended up being head on with aircraft X at the same altitude. I issued traffic information as soon as possible; but the pilots did not see the other traffic. The Cessna had climbed up to 4;300 FT complicating the situation. The Beechjet doing the overhead approach had descended into the other airplanes as well. Recommendation: tell the military pilots that we cannot allow procedure turn approaches or any other full procedure approaches with this type of volume. Instead of me telling the Tower to send the circling airplane south; I should have climbed the airplane I was talking too and resolved the situation that way. I also allowed the trainee to let the situation develop into a bad situation that I could not fix in a timely enough manner. Better supervision of the operations would also be helpful.

Data retrieved from NASA's ASRS site as of April 2012 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	945786
Time
Date	201104
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Night
Aircraft 1
Make Model Name	Beechjet 400
Operating Under FAR Part	Part 91
Flight Phase	Descent
Route In Use	Other VOR/DME Runway XY
Flight Plan	IFR
Aircraft 2
Make Model Name	Beechjet 400
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Route In Use	Other ASR Circle to Land
Flight Plan	IFR
Person 1
Function	Approach Departure
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy

Approach controller providing OJT described a multiple aircraft conflict event involving intersecting runways; military maneuvers; and several approach procedures including a circle to land.