An light transport air carrier aircraft had a TCASII alert requiring a climb, ATC called an intruder aircraft at the same time the light transport responded to TCASII. The intruder aircraft was seen visually. No further conflict occurred.

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Attributes
ACN	209709
Time
Date	199204
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : bdr airport : jfk
State Reference	NY
Altitude	msl bound lower : 4000 msl bound upper : 4700
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : n90 artcc : zjx
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Navigation In Use	Other Other
Flight Phase	cruise other
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 6000
ASRS Report	209709
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	conflict : airborne less severe non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	flight crew : took evasive action flight crew : returned to intended course or assigned course other
Consequence	Other
Miss Distance	horizontal : 200 vertical : 700
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

Buf to jfk. While in cruise flight on V-44 over bridgeport VOR at 4000 ft, approach control (ny) called traffic 2 O'clock 3500 ft, 3 mi climbing. TCASII indicated the same thing. Crew visually searched for traffic. TCASII commanded climb. Crew climbed to 4700 ft and then, the first officer saw aircraft, an small aircraft, pass off our lower right side

Original NASA ASRS Text

Title: AN LTT ACR ACFT HAD A TCASII ALERT REQUIRING A CLB, ATC CALLED AN INTRUDER ACFT AT THE SAME TIME THE LTT RESPONDED TO TCASII. THE INTRUDER ACFT WAS SEEN VISUALLY. NO FURTHER CONFLICT OCCURRED.

Narrative: BUF TO JFK. WHILE IN CRUISE FLT ON V-44 OVER BRIDGEPORT VOR AT 4000 FT, APCH CTL (NY) CALLED TFC 2 O'CLOCK 3500 FT, 3 MI CLBING. TCASII INDICATED THE SAME THING. CREW VISUALLY SEARCHED FOR TFC. TCASII COMMANDED CLB. CREW CLBED TO 4700 FT AND THEN, THE FO SAW ACFT, AN SMA, PASS OFF OUR LOWER R SIDE

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.