Air carrier X climb to occupied altitude had less than standard separation from cpr Y. System error.

Attributes
ACN	201319
Time
Date	199202
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : col
State Reference	NY
Altitude	msl bound lower : 17000 msl bound upper : 17000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zny tracon : n90
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Experience	controller radar : 2
ASRS Report	201319
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	faa : investigated
Miss Distance	horizontal : 12000 vertical : 100
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Inter Facility Coordination Failure Operational Error

Narrative:

Cpr Y level at 170 talking to ny center. Air carrier X climbing to 170. Controller thought he stopped air carrier X at 160. 'Controller error'. Callback conversation with reporter revealed the following information: the reporter stated he had worked cpr Y and had turned the aircraft over to the center. Reporter was aware of the potential conflict and had written 160 on the flight progress strip but became distracted with other traffic and failed to issue the amended altitude to air carrier X. Reporter stated he turned air carrier X as soon as he realized air carrier X was climbing to same altitude as cpr Y. Conflict alert did not activate. Operational error was filed.

Original NASA ASRS Text

Title: ACR X CLB TO OCCUPIED ALT HAD LTSS FROM CPR Y. SYS ERROR.

Narrative: CPR Y LEVEL AT 170 TALKING TO NY CTR. ACR X CLBING TO 170. CTLR THOUGHT HE STOPPED ACR X AT 160. 'CTLR ERROR'. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED HE HAD WORKED CPR Y AND HAD TURNED THE ACFT OVER TO THE CTR. RPTR WAS AWARE OF THE POTENTIAL CONFLICT AND HAD WRITTEN 160 ON THE FLT PROGRESS STRIP BUT BECAME DISTRACTED WITH OTHER TFC AND FAILED TO ISSUE THE AMENDED ALT TO ACR X. RPTR STATED HE TURNED ACR X AS SOON AS HE REALIZED ACR X WAS CLBING TO SAME ALT AS CPR Y. CONFLICT ALERT DID NOT ACTIVATE. OPERROR WAS FILED.

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.