2 aircraft assigned same altitude opposite direction in non radar environment by ATC.

Attributes
ACN	293621
Time
Date	199501
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : aba
State Reference	FO
Altitude	msl bound lower : 33000 msl bound upper : 33000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	cruise other
Route In Use	enroute airway : tncf
Flight Plan	IFR
Aircraft 2
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
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	293621
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	conflict : airborne less severe non adherence : published procedure other anomaly other other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	controller : issued new clearance flight crew : took evasive action other
Consequence	Other
Miss Distance	horizontal : 90000
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

At XA38Z we were traveling northbound on A567 in curacao airspace. We were 25 NM south of moloc intersection when we acquired another aircraft on TCASII at our same altitude. When we saw his movement as sbound we advised curacao control. As they were calling an air carrier Y he approached 20 NM. We turned off the airway while curacao advised him to descend to FL310. We acquired him visually at the same time getting a TCASII TA. The closest we passed was 15 NM.

Original NASA ASRS Text

Title: 2 ACFT ASSIGNED SAME ALT OPPOSITE DIRECTION IN NON RADAR ENVIRONMENT BY ATC.

Narrative: AT XA38Z WE WERE TRAVELING NBOUND ON A567 IN CURACAO AIRSPACE. WE WERE 25 NM S OF MOLOC INTXN WHEN WE ACQUIRED ANOTHER ACFT ON TCASII AT OUR SAME ALT. WHEN WE SAW HIS MOVEMENT AS SBOUND WE ADVISED CURACAO CTL. AS THEY WERE CALLING AN ACR Y HE APCHED 20 NM. WE TURNED OFF THE AIRWAY WHILE CURACAO ADVISED HIM TO DSND TO FL310. WE ACQUIRED HIM VISUALLY AT THE SAME TIME GETTING A TCASII TA. THE CLOSEST WE PASSED WAS 15 NM.

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.