Air carrier X TCASII RA with VFR helicopter made go around.

Attributes
ACN	248269
Time
Date	199308
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : jfk
State Reference	NY
Altitude	msl bound lower : 1000 msl bound upper : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : jfk
Make Model Name	Helicopter
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	VFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Navigation In Use	Other
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	other personnel other
Qualification	controller : radar
Experience	controller radar : 11
ASRS Report	248269
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	other
Consequence	Other
Miss Distance	horizontal : 9000 vertical : 500
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

I was working the TCA position at jfk tower. A helicopter requested a clearance through the TCA on a route of flight which would remain north of the airport and approach course to runway 13L. I approved the request with the appropriate altitude and route restrictions. As the helicopter passed abeam the approach end of runway 13L, air carrier X was turning base to final 2-3 mi from the airport. I called the traffic to the helicopter who reported air carrier X in sight. I then instructed the helicopter to maintain visual separation. I pointed the helicopter out to the local controller, who was working air carrier X. Before the local controller could advise air carrier X about the helicopter, air carrier X had received a TCASII advisory, and initiated a go around.

Original NASA ASRS Text

Title: ACR X TCASII RA WITH VFR HELI MADE GAR.

Narrative: I WAS WORKING THE TCA POS AT JFK TWR. A HELI REQUESTED A CLRNC THROUGH THE TCA ON A RTE OF FLT WHICH WOULD REMAIN N OF THE ARPT AND APCH COURSE TO RWY 13L. I APPROVED THE REQUEST WITH THE APPROPRIATE ALT AND RTE RESTRICTIONS. AS THE HELI PASSED ABEAM THE APCH END OF RWY 13L, ACR X WAS TURNING BASE TO FINAL 2-3 MI FROM THE ARPT. I CALLED THE TFC TO THE HELI WHO RPTED ACR X IN SIGHT. I THEN INSTRUCTED THE HELI TO MAINTAIN VISUAL SEPARATION. I POINTED THE HELI OUT TO THE LCL CTLR, WHO WAS WORKING ACR X. BEFORE THE LCL CTLR COULD ADVISE ACR X ABOUT THE HELI, ACR X HAD RECEIVED A TCASII ADVISORY, AND INITIATED A GAR.

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.