Conflict between 2 aircraft was not noticed in time to prevent a loss of separation.

Attributes
ACN	580378
Time
Date	200304
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : pxv.vortac
State Reference	IN
Altitude	msl single value : 37000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zid.artcc
Operator	common carrier : air carrier
Make Model Name	EMB ERJ 145 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zid.artcc
Operator	common carrier : air carrier
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 17 controller time certified in position1 : 17
ASRS Report	580378
Person 2
Affiliation	company : air carrier
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 none taken : insufficient time
Miss Distance	horizontal : 21000 vertical : 300
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Aircraft at same altitude vectored too late to maintain standard separation.

Original NASA ASRS Text

Title: CONFLICT BTWN 2 ACFT WAS NOT NOTICED IN TIME TO PREVENT A LOSS OF SEPARATION.

Narrative: ACFT AT SAME ALT VECTORED TOO LATE TO MAINTAIN STANDARD SEPARATION.

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.