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

Attributes
ACN	245507
Time
Date	199307
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ord
State Reference	IL
Altitude	msl bound lower : 6000 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ord tower : sjt
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : direct
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Navigation In Use	Other
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 : 5
ASRS Report	245507
Person 2
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance other
Consequence	faa : investigated
Miss Distance	horizontal : 9000 vertical : 400
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error Inter Facility Coordination Failure

Narrative:

I was working the north satellite position at ord TRACON. Cpr Y was nwbound at 4000 ft going to mke. There was an air carrier X nwbound also about 10 mi ahead of cpr Y at 6000 ft. I saw air carrier X at 6100 ft so I thought he was climbing. I then climbed cpr Y to 6000 ft from 4000 ft. Cpr Y asked me what the air carrier X was doing. I said he was still at 6100 ft so I descended cpr Y to 5000 ft and turned him so the courses diverged. Callback conversation with reporter revealed the following: reporter stated she had coordination with the sector working cpr Y and informed the controller she would miss cpr Y. Separation was 400 ft and 1 1/2 mi.

Original NASA ASRS Text

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

Narrative: I WAS WORKING THE N SATELLITE POS AT ORD TRACON. CPR Y WAS NWBOUND AT 4000 FT GOING TO MKE. THERE WAS AN ACR X NWBOUND ALSO ABOUT 10 MI AHEAD OF CPR Y AT 6000 FT. I SAW ACR X AT 6100 FT SO I THOUGHT HE WAS CLBING. I THEN CLBED CPR Y TO 6000 FT FROM 4000 FT. CPR Y ASKED ME WHAT THE ACR X WAS DOING. I SAID HE WAS STILL AT 6100 FT SO I DSNDED CPR Y TO 5000 FT AND TURNED HIM SO THE COURSES DIVERGED. CALLBACK CONVERSATION WITH REPORTER REVEALED THE FOLLOWING: RPTR STATED SHE HAD COORD WITH THE SECTOR WORKING CPR Y AND INFORMED THE CTLR SHE WOULD MISS CPR Y. SEPARATION WAS 400 FT AND 1 1/2 MI.

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.