Departure controller did not see conflict between an small transport and an air carrier until the aircraft were passing with less than standard separation.

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Attributes
ACN	177709
Time
Date	199105
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ewr airport : teb
State Reference	NJ
Altitude	msl bound lower : 7200 msl bound upper : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90 tower : zzz
Operator	general aviation : corporate
Make Model Name	Small Transport
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Experience	controller military : 4 controller radar : 3
ASRS Report	177709
Person 2
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Miss Distance	horizontal : 12000 vertical : 800
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Small transport X was climbed to 8000' off of teb heading 270 degrees. Medium large transport Y was climbed to 10000' off of ewr heading 340 degrees. They ended up 10 mi northwest of ewr, crossing each other between 7000 and 8000'. At the time ewr was departing 2 runways, and other satellites had aircraft released. There were also some ARTS III problems. A satellite departure or 1 runway operation off ewr would help prevent this situation from happening again.

Original NASA ASRS Text

Title: DEP CTLR DID NOT SEE CONFLICT BETWEEN AN SMT AND AN ACR UNTIL THE ACFT WERE PASSING WITH LESS THAN STANDARD SEPARATION.

Narrative: SMT X WAS CLBED TO 8000' OFF OF TEB HDG 270 DEGS. MLG Y WAS CLBED TO 10000' OFF OF EWR HDG 340 DEGS. THEY ENDED UP 10 MI NW OF EWR, XING EACH OTHER BTWN 7000 AND 8000'. AT THE TIME EWR WAS DEPARTING 2 RWYS, AND OTHER SATELLITES HAD ACFT RELEASED. THERE WERE ALSO SOME ARTS III PROBS. A SATELLITE DEP OR 1 RWY OPERATION OFF EWR WOULD HELP PREVENT THIS SITUATION FROM HAPPENING AGAIN.

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.