Operational error.

Attributes
ACN	284896
Time
Date	199410
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : btg
State Reference	WA
Altitude	msl bound lower : 13000 msl bound upper : 13000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zse
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 121
Flight Phase	cruise other
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : flight data
Qualification	controller : radar
Experience	controller radar : 5
ASRS Report	284896
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 10
ASRS Report	284958
Events
Anomaly	non adherence : required legal separation non adherence : published procedure
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Miss Distance	horizontal : 27000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

I was working on the d-side and the r-side realized he was having a system error. Supplemental information from acn 284958: I was sequencing 5 aircraft and my focus was on the first 3 aircraft and I lost separation with the last 2 aircraft.

Original NASA ASRS Text

Title: OPERROR.

Narrative: I WAS WORKING ON THE D-SIDE AND THE R-SIDE REALIZED HE WAS HAVING A SYS ERROR. SUPPLEMENTAL INFO FROM ACN 284958: I WAS SEQUENCING 5 ACFT AND MY FOCUS WAS ON THE FIRST 3 ACFT AND I LOST SEPARATION WITH THE LAST 2 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.