Air carrier X same altitude assigned had less less than standard separation from cpr Y. System error...

Attributes
ACN	268411
Time
Date	199404
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : sbn
State Reference	IN
Altitude	msl bound lower : 33000 msl bound upper : 33000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zob tower : crg
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Learjet 25
Operating Under FAR Part	Part 91
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller non radar : 2 controller radar : 10
ASRS Report	268411
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	atc equipment other atc equipment : unspecified
Resolutory Action	none taken : detected after the fact
Consequence	faa : investigated
Miss Distance	horizontal : 18000 vertical : 1500
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error Intra Facility Coordination Failure

Narrative:

Air carrier X at FL330 was turned to a heading of 360 degree for spacing with another aircraft. This heading put X in conflict with cpr Y whose mode `C' indicated he was leaving FL330 for FL410. Being that Y was a LR25 and still several mins away, it should not have been a problem. However, Y was stopped at FL330 and NORDO, which was not coordinated with me. Had I known either one of these things, I would not have turned X north.

Original NASA ASRS Text

Title: ACR X SAME ALT ASSIGNED HAD LESS LTSS FROM CPR Y. SYS ERROR.

Narrative: ACR X AT FL330 WAS TURNED TO A HDG OF 360 DEG FOR SPACING WITH ANOTHER ACFT. THIS HDG PUT X IN CONFLICT WITH CPR Y WHOSE MODE `C' INDICATED HE WAS LEAVING FL330 FOR FL410. BEING THAT Y WAS A LR25 AND STILL SEVERAL MINS AWAY, IT SHOULD NOT HAVE BEEN A PROB. HOWEVER, Y WAS STOPPED AT FL330 AND NORDO, WHICH WAS NOT COORDINATED WITH ME. HAD I KNOWN EITHER ONE OF THESE THINGS, I WOULD NOT HAVE TURNED X N.

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.