Aircraft X same altitude assigned had less than standard separation from aircraft Y. System error.

Attributes
ACN	269429
Time
Date	199403
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : lgc
State Reference	GA
Altitude	msl bound lower : 25000 msl bound upper : 25000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : developmental
Experience	controller military : 10 controller radar : 1
ASRS Report	269429
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	faa : investigated
Miss Distance	horizontal : 26400 vertical : 900
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Operational error occurred when aircraft X and Y jets came less than 5 mi, 1000 ft. Training was in progress. Trainer and trainee were distraction about landline and direct coordination with other controllers. The sector was moderately lousy. I believe the error could have been avoided if there was a d-side available to handle the coordination which would have allowed the radar controller to concentrate on the aircraft.

Original NASA ASRS Text

Title: ACFT X SAME ALT ASSIGNED HAD LTSS FROM ACFT Y. SYS ERROR.

Narrative: OPERATIONAL ERROR OCCURRED WHEN ACFT X AND Y JETS CAME LESS THAN 5 MI, 1000 FT. TRAINING WAS IN PROGRESS. TRAINER AND TRAINEE WERE DISTR ABOUT LANDLINE AND DIRECT COORD WITH OTHER CTLRS. THE SECTOR WAS MODERATELY LOUSY. I BELIEVE THE ERROR COULD HAVE BEEN AVOIDED IF THERE WAS A D-SIDE AVAILABLE TO HANDLE THE COORD WHICH WOULD HAVE ALLOWED THE RADAR CTLR TO CONCENTRATE ON THE ACFT.

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.