Cpr X TCASII TA with VFR aircraft Y. See and avoid concept.

Attributes
ACN	247865
Time
Date	199308
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : hpn
State Reference	NY
Altitude	msl bound lower : 2400 msl bound upper : 2400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90 tower : hpn
Operator	general aviation : corporate
Make Model Name	Medium Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Experience	controller military : 4 controller non radar : 8 controller radar : 17 controller supervisory : 1
ASRS Report	247865
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	conflict : airborne less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	controller : issued new clearance
Consequence	Other
Miss Distance	horizontal : 9000
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

I was working a combined radar approach/arrival position. Traffic was very light. Cpr X departed hpn runway 34 (runway 34 SID, maintain runway heading, 1000 ft, left heading, 295 degrees, maintain 3000 ft). Cpr Y check-in leaving 1700 ft (mode C). At same time I observed a mode C target northwest of hpn at 2400 ft nwbound. I radar idented cpr Y, issued traffic and a right turn, heading 340 degrees. Cpr X did not see aircraft Y. I checked with hpn tower, asked if cpr X at 2400 ft was on his frequency and tower advised 'yes' and that traffic was issued to cpr X. I then asked cpr X if in fact tower had issued the traffic at 2400 ft. The pilot said yes and that aircraft Y was on TCASII but he never did see aircraft Y. There was no conflict alert on my radar system. I did not ask cpr X if he received a TCASII RA. The shift supervisor called the hpn supervisor. Their feeling is 'that once traffic is issued, they have done their job' (my words). This has happened on a number of occasions either, 2 IFR aircraft depart, the second being faster, or a VFR will depart, not contact departure, then an IFR will depart and overtake the VFR. Hpn has no problem with the operation 'issue traffic, contact departure control.'

Original NASA ASRS Text

Title: CPR X TCASII TA WITH VFR ACFT Y. SEE AND AVOID CONCEPT.

Narrative: I WAS WORKING A COMBINED RADAR APCH/ARR POS. TFC WAS VERY LIGHT. CPR X DEPARTED HPN RWY 34 (RWY 34 SID, MAINTAIN RWY HDG, 1000 FT, L HDG, 295 DEGS, MAINTAIN 3000 FT). CPR Y CHK-IN LEAVING 1700 FT (MODE C). AT SAME TIME I OBSERVED A MODE C TARGET NW OF HPN AT 2400 FT NWBOUND. I RADAR IDENTED CPR Y, ISSUED TFC AND A R TURN, HDG 340 DEGS. CPR X DID NOT SEE ACFT Y. I CHKED WITH HPN TWR, ASKED IF CPR X AT 2400 FT WAS ON HIS FREQ AND TWR ADVISED 'YES' AND THAT TFC WAS ISSUED TO CPR X. I THEN ASKED CPR X IF IN FACT TWR HAD ISSUED THE TFC AT 2400 FT. THE PLT SAID YES AND THAT ACFT Y WAS ON TCASII BUT HE NEVER DID SEE ACFT Y. THERE WAS NO CONFLICT ALERT ON MY RADAR SYS. I DID NOT ASK CPR X IF HE RECEIVED A TCASII RA. THE SHIFT SUPVR CALLED THE HPN SUPVR. THEIR FEELING IS 'THAT ONCE TFC IS ISSUED, THEY HAVE DONE THEIR JOB' (MY WORDS). THIS HAS HAPPENED ON A NUMBER OF OCCASIONS EITHER, 2 IFR ACFT DEPART, THE SECOND BEING FASTER, OR A VFR WILL DEPART, NOT CONTACT DEP, THEN AN IFR WILL DEPART AND OVERTAKE THE VFR. HPN HAS NO PROB WITH THE OP 'ISSUE TFC, CONTACT DEP CTL.'

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.