ARTCC radar controller turned a B737 in TRACON airspace without coordination and caused a potential conflict less than standard separation incident with an air carrier B737 inbound to cvg. Approach controller saw incident begin and turned the inbound aircraft, but separation was lost anyway.

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Attributes
ACN	353609
Time
Date	199611
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : cvg
State Reference	OH
Altitude	msl bound lower : 11000 msl bound upper : 11800
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zid tracon : cvg
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors enroute : direct enroute airway : cvg
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	descent other
Route In Use	enroute : on vectors enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar pilot : instrument
Experience	controller radar : 15 controller supervisory : 2 flight time total : 1200
ASRS Report	353609
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller military : 5 controller non radar : 4 controller radar : 14
ASRS Report	354649
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	faa : investigated
Miss Distance	horizontal : 12000 vertical : 800
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

ZID controller turned aircraft #1 in approach control's airspace without prior coordination. This turn caused aircraft #2 to be assigned evasive vectors to miss aircraft #1. Other aircraft then had to be turned to miss aircraft #2. Not aware of any corrective action with ZID controller. Supplemental information from acn 354649: at approximately XA15 local air carrier Y was inbound to cvg on the milar arrival at 12000 ft. Air carrier X, a departure off cvg, was outbound on V128. Air carrier Y turned off V128 on a heading which put him in direct conflict with air carrier X. Upon becoming aware of this situation I descended air carrier X and turned him immediately to a heading of 270 degrees. When the aircraft were separated by altitude I reclred air carrier X direct cvg. Upon further investigation I learned ZID had cleared air carrier Y direct okk without coordination.

Original NASA ASRS Text

Title: ARTCC RADAR CTLR TURNED A B737 IN TRACON AIRSPACE WITHOUT COORD AND CAUSED A POTENTIAL CONFLICT LTSS INCIDENT WITH AN ACR B737 INBOUND TO CVG. APCH CTLR SAW INCIDENT BEGIN AND TURNED THE INBOUND ACFT, BUT SEPARATION WAS LOST ANYWAY.

Narrative: ZID CTLR TURNED ACFT #1 IN APCH CTL'S AIRSPACE WITHOUT PRIOR COORD. THIS TURN CAUSED ACFT #2 TO BE ASSIGNED EVASIVE VECTORS TO MISS ACFT #1. OTHER ACFT THEN HAD TO BE TURNED TO MISS ACFT #2. NOT AWARE OF ANY CORRECTIVE ACTION WITH ZID CTLR. SUPPLEMENTAL INFO FROM ACN 354649: AT APPROX XA15 LCL ACR Y WAS INBOUND TO CVG ON THE MILAR ARR AT 12000 FT. ACR X, A DEP OFF CVG, WAS OUTBOUND ON V128. ACR Y TURNED OFF V128 ON A HDG WHICH PUT HIM IN DIRECT CONFLICT WITH ACR X. UPON BECOMING AWARE OF THIS SIT I DSNDED ACR X AND TURNED HIM IMMEDIATELY TO A HDG OF 270 DEGS. WHEN THE ACFT WERE SEPARATED BY ALT I RECLRED ACR X DIRECT CVG. UPON FURTHER INVESTIGATION I LEARNED ZID HAD CLRED ACR Y DIRECT OKK WITHOUT COORD.

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.