ZKC controller experienced loss of separation vectoring 2 aircraft at FL390.

Attributes
ACN	607862
Time
Date	200402
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : gag.vortac
State Reference	OK
Altitude	msl single value : 39000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zkc.artcc
Operator	general aviation : corporate
Make Model Name	Learjet 60
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zkc.artcc
Operator	common carrier : air carrier
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : handoff position controller : radar
Qualification	controller : developmental
Experience	controller military : 6 controller non radar : 1
ASRS Report	607862
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation non adherence : published procedure
Independent Detector	atc equipment : conflict alert other controllera
Resolutory Action	flight crew : took evasive action
Consequence	faa : investigated
Miss Distance	horizontal : 21000 vertical : 500
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Air carrier Y headed west, checked on frequency on assigned heading 265 degrees (runway 10L) to go behind aircraft X. Aircraft X turned at gag and lost separation with air carrier Y.

Original NASA ASRS Text

Title: ZKC CTLR EXPERIENCED LOSS OF SEPARATION VECTORING 2 ACFT AT FL390.

Narrative: ACR Y HEADED W, CHKED ON FREQ ON ASSIGNED HDG 265 DEGS (RWY 10L) TO GO BEHIND ACFT X. ACFT X TURNED AT GAG AND LOST SEPARATION WITH ACR Y.

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.