A cpr jet delayed its descent due to a TCASII TA then RA.

Attributes
ACN	315372
Time
Date	199509
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : hpn
State Reference	NY
Altitude	msl bound lower : 4000 msl bound upper : 4000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90
Operator	general aviation : corporate
Make Model Name	Falcon 20FJF/20C/20D/20E/20F
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Person 1
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 60 flight time total : 5200 flight time type : 800
ASRS Report	315372
Person 2
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 40 flight time total : 8000 flight time type : 50
ASRS Report	314867
Events
Anomaly	aircraft equipment problem : less severe conflict : nmac non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

On descent to hpn, cleared 4000 ft descend to 3000 ft and had seen traffic on TCASII and delayed leaving 4000 ft. TA then RA to climb. Traffic passed 200 ft directly below. ATC said they did not have traffic. We never had traffic visually. Callback conversation with reporter revealed the following information: the reporter flies the falcon 20F for a corporate flight department that also does charter work. Reporter agrees that this may have been a false alarm, but thinks not. She has not seen a false alarm in her TCASII equipment for 'quite some time.' she states that there is a lot of general aviation and commuter air carrier traffic at hpn requiring constant attention by flcs.

Original NASA ASRS Text

Title: A CPR JET DELAYED ITS DSCNT DUE TO A TCASII TA THEN RA.

Narrative: ON DSCNT TO HPN, CLRED 4000 FT DSND TO 3000 FT AND HAD SEEN TFC ON TCASII AND DELAYED LEAVING 4000 FT. TA THEN RA TO CLB. TFC PASSED 200 FT DIRECTLY BELOW. ATC SAID THEY DID NOT HAVE TFC. WE NEVER HAD TFC VISUALLY. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR FLIES THE FALCON 20F FOR A CORPORATE FLT DEPT THAT ALSO DOES CHARTER WORK. RPTR AGREES THAT THIS MAY HAVE BEEN A FALSE ALARM, BUT THINKS NOT. SHE HAS NOT SEEN A FALSE ALARM IN HER TCASII EQUIP FOR 'QUITE SOME TIME.' SHE STATES THAT THERE IS A LOT OF GENERAL AVIATION AND COMMUTER ACR TFC AT HPN REQUIRING CONSTANT ATTN BY FLCS.

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.