A less than standard separation occurred when 2 aircraft were coordinated for use of the same altitude. 1 aircraft reported on a TCASII climb for traffic at the same altitude (FL350).

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Attributes
ACN	325402
Time
Date	199601
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : mjzs
State Reference	PR
Altitude	msl bound lower : 35000 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : mjzs
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude cruise other
Flight Plan	IFR
Aircraft 2
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
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
ASRS Report	325402
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : required legal separation non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

While working R-4 (radar sector) I got a call from an aircraft off radar. On initial call he told me that he was on a TCASII climb for traffic head-on at same altitude (FL350). Due to human error, 2 aircraft were coordinated at same altitude head-on.

Original NASA ASRS Text

Title: A LTSS OCCURRED WHEN 2 ACFT WERE COORDINATED FOR USE OF THE SAME ALT. 1 ACFT RPTED ON A TCASII CLB FOR TFC AT THE SAME ALT (FL350).

Narrative: WHILE WORKING R-4 (RADAR SECTOR) I GOT A CALL FROM AN ACFT OFF RADAR. ON INITIAL CALL HE TOLD ME THAT HE WAS ON A TCASII CLB FOR TFC HEAD-ON AT SAME ALT (FL350). DUE TO HUMAN ERROR, 2 ACFT WERE COORDINATED AT SAME ALT HEAD-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.