An arriving B727 evades climbing VFR traffic after receiving a TCASII RA. Approach control had advis...

Attributes
ACN	436351
Time
Date	199905
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : jot.vortac
State Reference	IL
Altitude	msl bound lower : 5600 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : c90.tracon
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other other vortac
Flight Phase	descent : intermediate altitude descent : approach
Route In Use	arrival : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : c90.tracon
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : vacating altitude
Route In Use	departure : vfr
Flight Plan	VFR
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 : 8000 flight time type : 3000
ASRS Report	436351
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Events
Anomaly	conflict : airborne critical non adherence : clearance non adherence : far non adherence : required legal separation
Independent Detector	aircraft equipment : tcas other controllera
Resolutory Action	controller : issued advisory flight crew : took evasive action
Miss Distance	horizontal : 3000 vertical : 300
Supplementary
Problem Areas	ATC Human Performance Airspace Structure Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Ord approach called VFR traffic at 2 O'clock and climbing VFR. We were at 6000 ft, traffic was 6300 ft or 300 ft above us. We were alerted by traffic alert TCASII and subsequent RA. We took evasive action by turning left and descending to 5600 ft in order to avoid conflict. Ord approach was advised about RA.

Original NASA ASRS Text

Title: AN ARRIVING B727 EVADES CLBING VFR TFC AFTER RECEIVING A TCASII RA. APCH CTL HAD ADVISED CREW OF THE TFC.

Narrative: ORD APCH CALLED VFR TFC AT 2 O'CLOCK AND CLBING VFR. WE WERE AT 6000 FT, TFC WAS 6300 FT OR 300 FT ABOVE US. WE WERE ALERTED BY TFC ALERT TCASII AND SUBSEQUENT RA. WE TOOK EVASIVE ACTION BY TURNING L AND DSNDING TO 5600 FT IN ORDER TO AVOID CONFLICT. ORD APCH WAS ADVISED ABOUT RA.

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.

An arriving B727 evades climbing VFR traffic after receiving a TCASII RA. Approach control had advised crew of the traffic.