Air carrier X had less than standard separation from air carrier Y. System error.

Attributes
ACN	129732
Time
Date	198911
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : bvt
State Reference	IN
Altitude	msl bound lower : 22000 msl bound upper : 22000
Environment
Light	Night
Aircraft 1
Controlling Facilities	artcc : zid tower : buf
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other descent other
Route In Use	enroute : direct
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other descent other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : non radar
Qualification	controller : non radar
Experience	controller non radar : 1
ASRS Report	129732
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation non adherence : published procedure
Independent Detector	atc equipment other atc equipment : unspecified
Resolutory Action	none taken : detected after the fact
Consequence	faa : investigated
Miss Distance	horizontal : 1800 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

I had just signed on position and had just received a position relief briefing when sep was lost between air carrier X and air carrier Y.

Original NASA ASRS Text

Title: ACR X HAD LESS THAN STANDARD SEPARATION FROM ACR Y. SYSTEM ERROR.

Narrative: I HAD JUST SIGNED ON POS AND HAD JUST RECEIVED A POS RELIEF BRIEFING WHEN SEP WAS LOST BTWN ACR X AND ACR Y.

Data retrieved from NASA's ASRS site as of August 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.