Less than standard separation between WW24 and N265 at the same altitude. Operational error.

Attributes
ACN	351240
Time
Date	199610
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dfw
State Reference	TX
Altitude	msl bound lower : 10000 msl bound upper : 10000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dfw
Operator	general aviation : corporate
Make Model Name	IAI1124/1124A/Westwind
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Sabreliner 265
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Experience	flight time total : 8
ASRS Report	351240
Person 2
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : required legal separation non adherence : published procedure
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Miss Distance	horizontal : 4800 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

WW24 heading 020 degrees climbing to 10000 ft. N265 heading 100 degrees to join 082 degree radial climbing to 10000 ft. WW24 should have been issued turn behind traffic or climb before occurrence. Dfw metroplex airspace requires dal departures to climb higher to avoid dfw/east satellite arrs. Conflict alert activated but this is often a nuisance alert. I was quick-looking one sector and was displayed traffic from 2 sectors at the time. It took a few seconds to determine who was in conflict. The video map was set on feeder/arrival and not departure when I assumed the position and I hadn't had time to change it. The airport supervisor instructed me to make an ARTS confign entry which caused me to look away from the radar display. Traffic was steady and complex due to crossing traffic at the time.

Original NASA ASRS Text

Title: LTSS BTWN WW24 AND N265 AT THE SAME ALT. OPERROR.

Narrative: WW24 HDG 020 DEGS CLBING TO 10000 FT. N265 HDG 100 DEGS TO JOIN 082 DEG RADIAL CLBING TO 10000 FT. WW24 SHOULD HAVE BEEN ISSUED TURN BEHIND TFC OR CLB BEFORE OCCURRENCE. DFW METROPLEX AIRSPACE REQUIRES DAL DEPS TO CLB HIGHER TO AVOID DFW/EAST SATELLITE ARRS. CONFLICT ALERT ACTIVATED BUT THIS IS OFTEN A NUISANCE ALERT. I WAS QUICK-LOOKING ONE SECTOR AND WAS DISPLAYED TFC FROM 2 SECTORS AT THE TIME. IT TOOK A FEW SECONDS TO DETERMINE WHO WAS IN CONFLICT. THE VIDEO MAP WAS SET ON FEEDER/ARR AND NOT DEP WHEN I ASSUMED THE POS AND I HADN'T HAD TIME TO CHANGE IT. THE ARPT SUPVR INSTRUCTED ME TO MAKE AN ARTS CONFIGN ENTRY WHICH CAUSED ME TO LOOK AWAY FROM THE RADAR DISPLAY. TFC WAS STEADY AND COMPLEX DUE TO XING TFC AT THE TIME.

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.