Cpr X had less than standard separation from atx Y. System error.

Attributes
ACN	168621
Time
Date	199101
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : alb
State Reference	NY
Altitude	msl bound lower : 16000 msl bound upper : 17000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zbw
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other descent other
Route In Use	enroute : direct
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air taxi
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller military : 4 controller radar : 2
ASRS Report	168621
Person 2
Affiliation	government : faa
Function	controller : handoff position
Qualification	controller : radar
ASRS Report	168682
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	atc equipment other atc equipment : unspecified other controllera
Resolutory Action	controller : issued new clearance other
Consequence	faa : investigated
Miss Distance	horizontal : 25200 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error Intra Facility Coordination Failure

Narrative:

I was working a very complex sector. I gave a descent to cpr X which placed him in confliction with atx Y. The radar associate pointed out the potential problem, but I misunderstood him. The supervisor came by moments later and pointed out the potential confliction, I then took immediate action to resolve the confliction, however, sep was lost. I believe this error was a result of a miscom between myself and the radar associate controller. Callback conversation with reporter revealed the following information. Reporter experience; 2 yrs radar, 2 yrs non radar, 4 yrs military. The handoff controller was radar qualified. The reporter stated several conflict alerts were flashing on his radar scope. The handoff controller pointed to the scope at a conflict that he thought the handoff controller was pointing at. The supervisor pointed out the system error conflict by using aircraft call signs and the reporter took action but not in time. Sep was 4.2 mi horizontal, 0 vertical. Place was 30 mi east of alb. System error filed. Supplemental information from acn 168682. Busy complex sector. Radar controller gave descent to one aircraft which placed him in confliction with another aircraft. I pointed the confliction out, but the radar controller misunderstood me.

Original NASA ASRS Text

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

Narrative: I WAS WORKING A VERY COMPLEX SECTOR. I GAVE A DSNT TO CPR X WHICH PLACED HIM IN CONFLICTION WITH ATX Y. THE RADAR ASSOCIATE POINTED OUT THE POTENTIAL PROB, BUT I MISUNDERSTOOD HIM. THE SUPVR CAME BY MOMENTS LATER AND POINTED OUT THE POTENTIAL CONFLICTION, I THEN TOOK IMMEDIATE ACTION TO RESOLVE THE CONFLICTION, HOWEVER, SEP WAS LOST. I BELIEVE THIS ERROR WAS A RESULT OF A MISCOM BTWN MYSELF AND THE RADAR ASSOCIATE CTLR. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO. RPTR EXPERIENCE; 2 YRS RADAR, 2 YRS NON RADAR, 4 YRS MIL. THE HDOF CTLR WAS RADAR QUALIFIED. THE RPTR STATED SEVERAL CONFLICT ALERTS WERE FLASHING ON HIS RADAR SCOPE. THE HDOF CTLR POINTED TO THE SCOPE AT A CONFLICT THAT HE THOUGHT THE HDOF CTLR WAS POINTING AT. THE SUPVR POINTED OUT THE SYS ERROR CONFLICT BY USING ACFT CALL SIGNS AND THE RPTR TOOK ACTION BUT NOT IN TIME. SEP WAS 4.2 MI HORIZ, 0 VERT. PLACE WAS 30 MI E OF ALB. SYS ERROR FILED. SUPPLEMENTAL INFO FROM ACN 168682. BUSY COMPLEX SECTOR. RADAR CTLR GAVE DSNT TO ONE ACFT WHICH PLACED HIM IN CONFLICTION WITH ANOTHER ACFT. I POINTED THE CONFLICTION OUT, BUT THE RADAR CTLR MISUNDERSTOOD ME.

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.