Controller had less than standard separation between air carrier aircraft on converging courses.

Attributes
ACN	96182
Time
Date	198810
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ood airport : phl
State Reference	NJ
Altitude	msl bound lower : 3000 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : phl artcc : zdc
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Light Transport, High Wing, 2 Turboprop Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
ASRS Report	96182
Person 2
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	other
Consequence	Other
Miss Distance	horizontal : 15000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Large transport X and light transport Y were issued instructions that brought them within less than standard ATC sep. To help this situation, use of proper airway routings out of phl. Due to equipment failure the controller did not have a warning of the converging courses. Restrict the free flow of traffic in and out of phl and its surrounding airports.

Original NASA ASRS Text

Title: CTLR HAD LESS THAN STANDARD SEPARATION BETWEEN ACR ACFT ON CONVERGING COURSES.

Narrative: LGT X AND LTT Y WERE ISSUED INSTRUCTIONS THAT BROUGHT THEM WITHIN LESS THAN STANDARD ATC SEP. TO HELP THIS SITUATION, USE OF PROPER AIRWAY ROUTINGS OUT OF PHL. DUE TO EQUIPMENT FAILURE THE CTLR DID NOT HAVE A WARNING OF THE CONVERGING COURSES. RESTRICT THE FREE FLOW OF TFC IN AND OUT OF PHL AND ITS SURROUNDING ARPTS.

Data retrieved from NASA's ASRS site as of August 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.