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

Attributes
ACN	166558
Time
Date	199012
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : pds
State Reference	FO
Altitude	msl bound lower : 29000 msl bound upper : 35000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ttpc artcc : zny
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other
Route In Use	enroute : other oceanic enroute : atlantic
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Flight Phase	descent other
Route In Use	enroute : atlantic enroute : other oceanic
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : non radar
Qualification	controller : non radar
Experience	controller non radar : 3
ASRS Report	166558
Person 2
Affiliation	government other
Function	controller : non radar
Qualification	controller : non radar
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other other : unspecified atc
Resolutory Action	none taken : detected after the fact
Consequence	faa : investigated
Miss Distance	horizontal : 96000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error Inter Facility Coordination Failure

Narrative:

Air carrier X was estimating 18N/60W xx 35Z at FL350. Air carrier Y was estimating 18N/60 west XX38Z at FL290. When I passed the estimates to piareo control, I mistakenly said YY38Z for air carrier Y which was an 1 hour error. Then when piareo came in contact with air carrier X at 18N/60W, piareo gave him a descent clearance which put him in conflict with air carrier Y. This incident would have been avoided if ny ARTCC was automated with piareo control. This incident would also have been avoided if the controller in piareo had taken proper action, such as question the pilot estimate, or called ny for control for descent. We must improve the equipment in which we have to work with. On this day we were using an outside line (att) to call piareo with estimates. This can result in a dangerous situation.

Original NASA ASRS Text

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

Narrative: ACR X WAS ESTIMATING 18N/60W XX 35Z AT FL350. ACR Y WAS ESTIMATING 18N/60 W XX38Z AT FL290. WHEN I PASSED THE ESTIMATES TO PIAREO CTL, I MISTAKENLY SAID YY38Z FOR ACR Y WHICH WAS AN 1 HR ERROR. THEN WHEN PIAREO CAME IN CONTACT WITH ACR X AT 18N/60W, PIAREO GAVE HIM A DSNT CLRNC WHICH PUT HIM IN CONFLICT WITH ACR Y. THIS INCIDENT WOULD HAVE BEEN AVOIDED IF NY ARTCC WAS AUTOMATED WITH PIAREO CTL. THIS INCIDENT WOULD ALSO HAVE BEEN AVOIDED IF THE CTLR IN PIAREO HAD TAKEN PROPER ACTION, SUCH AS QUESTION THE PLT ESTIMATE, OR CALLED NY FOR CTL FOR DSNT. WE MUST IMPROVE THE EQUIP IN WHICH WE HAVE TO WORK WITH. ON THIS DAY WE WERE USING AN OUTSIDE LINE (ATT) TO CALL PIAREO WITH ESTIMATES. THIS CAN RESULT IN A DANGEROUS SITUATION.

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.