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

Attributes
ACN	183458
Time
Date	199107
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : lit
State Reference	AR
Altitude	msl bound lower : 1200 msl bound upper : 1200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : lit tower : lit artcc : zny
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach
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 : initial
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
ASRS Report	183458
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other other : unspecified atc
Resolutory Action	none taken : anomaly accepted
Consequence	faa : investigated
Miss Distance	horizontal : 12000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Inter Facility Coordination Failure Operational Error

Narrative:

I was working the local control position at lit ATCT. The radar east controller had requested an opposite direction arrival on cpr X 30 SM southwest of lit and was given approval. Air carrier X was taxied into position and hold on runway 22R. I visually saw that cpr X was now 6 mi ssw of lit east of the departure corridor for runway 22R on a heading of 065 degree. Air carrier Y was departed on runway heading 223 degree. The radar east controller was notified of the departure heading for air carrier Y. Since cpr X course was 065 degree and air carrier Y course was 223 degree and I observed that they had crossed the projected course of each other. I switched air carrier Y to the departure radar east controller.

Original NASA ASRS Text

Title: CPR X HAD LTSS FROM ACR Y. SYS ERROR.

Narrative: I WAS WORKING THE LCL CTL POS AT LIT ATCT. THE RADAR E CTLR HAD REQUESTED AN OPPOSITE DIRECTION ARR ON CPR X 30 SM SW OF LIT AND WAS GIVEN APPROVAL. ACR X WAS TAXIED INTO POS AND HOLD ON RWY 22R. I VISUALLY SAW THAT CPR X WAS NOW 6 MI SSW OF LIT E OF THE DEP CORRIDOR FOR RWY 22R ON A HDG OF 065 DEG. ACR Y WAS DEPARTED ON RWY HDG 223 DEG. THE RADAR E CTLR WAS NOTIFIED OF THE DEP HDG FOR ACR Y. SINCE CPR X COURSE WAS 065 DEG AND ACR Y COURSE WAS 223 DEG AND I OBSERVED THAT THEY HAD CROSSED THE PROJECTED COURSE OF EACH OTHER. I SWITCHED ACR Y TO THE DEP RADAR E CTLR.

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.