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

Attributes
ACN	167335
Time
Date	199101
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : chs
State Reference	SC
Altitude	msl bound lower : 41000 msl bound upper : 41000
Environment
Light	Night
Aircraft 1
Controlling Facilities	artcc : zny
Operator	other
Make Model Name	Military Transport
Flight Phase	cruise other
Route In Use	enroute : other oceanic
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other
Route In Use	enroute : other oceanic
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : non radar
Qualification	controller : non radar
Experience	controller non radar : 2
ASRS Report	167335
Person 2
Affiliation	government : faa
Function	controller : non radar
Qualification	controller : non radar
Experience	controller non radar : 2
ASRS Report	167328
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Miss Distance	horizontal : 48000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Mlt X westbound on R13 was approved at FL410 from 089 degrees. Approximately 50 mins later air carrier Y southbound on 763 degree right was approved at FL410. Operational error was reported after relieving controller took over sector. Supplemental information from acn 167328: I assumed responsibility for a sector where the crossing situation was not pointed out to me in the briefing and I failed to notice it in the position preview. I was informed of the error by the pilot during the same minute I logged on.

Original NASA ASRS Text

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

Narrative: MLT X WBND ON R13 WAS APPROVED AT FL410 FROM 089 DEGS. APPROX 50 MINS LATER ACR Y SBND ON 763 DEG R WAS APPROVED AT FL410. OPERROR WAS RPTED AFTER RELIEVING CTLR TOOK OVER SECTOR. SUPPLEMENTAL INFO FROM ACN 167328: I ASSUMED RESPONSIBILITY FOR A SECTOR WHERE THE XING SITUATION WAS NOT POINTED OUT TO ME IN THE BRIEFING AND I FAILED TO NOTICE IT IN THE POS PREVIEW. I WAS INFORMED OF THE ERROR BY THE PLT DURING THE SAME MINUTE I LOGGED ON.

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.