Flight crew had TCASII RA on traffic that TRACON had advised 500 ft below. Flight climbed to 3400 MS...

Attributes
ACN	184153
Time
Date	199107
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : isp
State Reference	NY
Altitude	msl bound lower : 3000 msl bound upper : 3400
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90 artcc : zhn
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude cruise other
Flight Plan	IFR
Aircraft 2
Operator	other
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 100 flight time total : 12000 flight time type : 4000
ASRS Report	184153
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 10100 flight time type : 3500
ASRS Report	184154
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : nmac non adherence : clearance other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 0 vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were at 3000 MSL. New york TRACON advised us of traffic at 12 O'clock, 5 mi, head-on at 2500 ft MSL. Traffic may have climbed as we got TCASII RA to climb -- climbed to 3400 ft MSL to avoid traffic till we saw traffic at 12 O'clock and less than 1 mi. Advised ATC of TCASII maneuver.

Original NASA ASRS Text

Title: FLC HAD TCASII RA ON TFC THAT TRACON HAD ADVISED 500 FT BELOW. FLT CLBED TO 3400 MSL TO AVOID BY 500 FT.

Narrative: WE WERE AT 3000 MSL. NEW YORK TRACON ADVISED US OF TFC AT 12 O'CLOCK, 5 MI, HEAD-ON AT 2500 FT MSL. TFC MAY HAVE CLBED AS WE GOT TCASII RA TO CLB -- CLBED TO 3400 FT MSL TO AVOID TFC TILL WE SAW TFC AT 12 O'CLOCK AND LESS THAN 1 MI. ADVISED ATC OF TCASII MANEUVER.

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.

Flight crew had TCASII RA on traffic that TRACON had advised 500 ft below. Flight climbed to 3400 MSL to avoid by 500 ft.