Medium large transport has TCASII RA for VFR traffic. Responds.

Attributes
ACN	229305
Time
Date	199212
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ewr
State Reference	NJ
Altitude	msl bound lower : 9000 msl bound upper : 10000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : den
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	arrival star : star enroute airway : zny
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 180 flight time total : 11000 flight time type : 1000
ASRS Report	229305
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 700
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were on STAR IPT1 to ewr with clearance to cross sweet at 7000. ATC advised of þtfc 12 O'clock, 10 mi VFR altitude readout of 8600.' I asked ATC to keep us advised of traffic. ATC advised us of traffic 12 O'clock, 3 mi VFR altitude readout of 8500.' we asked for vectors around traffic, and stopped our descent at 9000 ft. At that time we got a TCASII RA of þclb, climb.' captain (PF) initiated climb and I advised ATC of our action. I saw the aircraft pass under us at 700 ft and 1 mi to the right. At 9800 ft TCASII announced þclr of conflict.' we leveled off at 10000 ft and advised ATC. ATC reclred us to 9000 ft and to hold at penns intersection. The rest of the flight segment continued without incident. I believe this situation could have been avoided if ATC would have amended our altitude or given us a vector around the traffic.

Original NASA ASRS Text

Title: MLG HAS TCASII RA FOR VFR TFC. RESPONDS.

Narrative: WE WERE ON STAR IPT1 TO EWR WITH CLRNC TO CROSS SWEET AT 7000. ATC ADVISED OF þTFC 12 O'CLOCK, 10 MI VFR ALT READOUT OF 8600.' I ASKED ATC TO KEEP US ADVISED OF TFC. ATC ADVISED US OF TFC 12 O'CLOCK, 3 MI VFR ALT READOUT OF 8500.' WE ASKED FOR VECTORS AROUND TFC, AND STOPPED OUR DSCNT AT 9000 FT. AT THAT TIME WE GOT A TCASII RA OF þCLB, CLB.' CAPT (PF) INITIATED CLB AND I ADVISED ATC OF OUR ACTION. I SAW THE ACFT PASS UNDER US AT 700 FT AND 1 MI TO THE R. AT 9800 FT TCASII ANNOUNCED þCLR OF CONFLICT.' WE LEVELED OFF AT 10000 FT AND ADVISED ATC. ATC RECLRED US TO 9000 FT AND TO HOLD AT PENNS INTXN. THE REST OF THE FLT SEGMENT CONTINUED WITHOUT INCIDENT. I BELIEVE THIS SIT COULD HAVE BEEN AVOIDED IF ATC WOULD HAVE AMENDED OUR ALT OR GIVEN US A VECTOR AROUND THE TFC.

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.