Aircraft entered adjacent airspace without a handoff resulting in less than standard separation with...

Attributes
ACN	116666
Time
Date	198907
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : lga
State Reference	NY
Altitude	msl bound lower : 4000 msl bound upper : 4000
Environment
Flight Conditions	Mixed
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : n90
Operator	common carrier : air taxi
Make Model Name	Small Transport
Flight Phase	cruise other cruise other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air taxi
Make Model Name	Small Transport
Flight Phase	cruise other cruise other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller radar : 5
ASRS Report	116666
Person 2
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : required legal separation non adherence : published procedure other anomaly other other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	other
Consequence	Other
Miss Distance	horizontal : 12000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Intra Facility Coordination Failure Operational Error

Narrative:

I was working the vikky position at the ny TRACON. Traffic was light, but the position working the underlying airspace from me was extremely busy. I was watching aircraft going through my airspace via pointouts and working the aircraft to help alleviate the workload from the busier position. I was also working 2 la guardia arrivals, 15 mi in trail, established on the lga 075 degree right. This was my own traffic. The first aircraft was handed off and was switched to the la guardia controller. The second aircraft was not handed off, entered the next controller's airspace and was switched to his frequency. The la guardia controller, unaware of the second aircraft, was turning the first aircraft eastbound toward the second aircraft. I noticed this, then I noticed the second aircraft was still on my data tag. I called the la guardia controller to warn him and suggest action. The aircraft came within 1-2 mi.

Original NASA ASRS Text

Title: ACFT ENTERED ADJACENT AIRSPACE WITHOUT A HANDOFF RESULTING IN LESS THAN STANDARD SEPARATION WITH ANOTHER ACFT.

Narrative: I WAS WORKING THE VIKKY POSITION AT THE NY TRACON. TFC WAS LIGHT, BUT THE POSITION WORKING THE UNDERLYING AIRSPACE FROM ME WAS EXTREMELY BUSY. I WAS WATCHING ACFT GOING THROUGH MY AIRSPACE VIA POINTOUTS AND WORKING THE ACFT TO HELP ALLEVIATE THE WORKLOAD FROM THE BUSIER POSITION. I WAS ALSO WORKING 2 LA GUARDIA ARRIVALS, 15 MI IN TRAIL, ESTABLISHED ON THE LGA 075 DEG R. THIS WAS MY OWN TFC. THE FIRST ACFT WAS HANDED OFF AND WAS SWITCHED TO THE LA GUARDIA CTLR. THE SECOND ACFT WAS NOT HANDED OFF, ENTERED THE NEXT CTLR'S AIRSPACE AND WAS SWITCHED TO HIS FREQ. THE LA GUARDIA CTLR, UNAWARE OF THE SECOND ACFT, WAS TURNING THE FIRST ACFT EBND TOWARD THE SECOND ACFT. I NOTICED THIS, THEN I NOTICED THE SECOND ACFT WAS STILL ON MY DATA TAG. I CALLED THE LA GUARDIA CTLR TO WARN HIM AND SUGGEST ACTION. THE ACFT CAME WITHIN 1-2 MI.

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.

Aircraft entered adjacent airspace without a handoff resulting in less than standard separation with another aircraft.