A320 crew had TCASII RA in atl class B airspace.

Attributes
ACN	491646
Time
Date	200011
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	navaid : atl.ils
State Reference	GA
Altitude	msl bound lower : 12000 msl bound upper : 12250
Environment
Flight Conditions	IMC
Weather Elements	Rain
Light	Night
Aircraft 1
Controlling Facilities	tracon : atl.tracon
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : intermediate altitude
Route In Use	arrival star : rome 2
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : atl.tracon
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	climbout : vacating altitude
Route In Use	departure : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain observation : company check pilot oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 17000 flight time type : 6000
ASRS Report	491646
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	conflict : airborne critical inflight encounter : weather non adherence : published procedure non adherence : required legal separation
Independent Detector	aircraft equipment : tcas other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action other
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 10000 vertical : 0
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

We were inbound to atl VOR on rome 2 arrival, level at 12000 ft, when we received a TA on our TCASII. The threat aircraft was displayed at 1-2 O'clock position, approximately 4-6 mi and 600-800 ft below us, climbing. As the aircraft closed with us, we tried several times to communicate our concern to ATC, but due to frequency congestion we were unable to do so. We then received a TCASII RA to climb. We climbed to approximately 12250 ft when the RA ceased. We were finally able to notify ATC of the occurrence as we returned to 12000 ft. After landing, I called the TRACON on the phone and the person there (not the controller involved) admitted that it was controller error and that they were 'taking care of it.' he stated that the other aircraft was departing atl due west towards the 'wetwo' fix (see atl departure procedure) and cleared to an altitude above ours when the controller turned the aircraft north towards the 'notwo' fix without topping the aircraft's climb. I estimate the aircraft crossed our altitude as it passed off our right side (3 or 4 O'clock position) at 2-3 mi distance.

Original NASA ASRS Text

Title: A320 CREW HAD TCASII RA IN ATL CLASS B AIRSPACE.

Narrative: WE WERE INBOUND TO ATL VOR ON ROME 2 ARR, LEVEL AT 12000 FT, WHEN WE RECEIVED A TA ON OUR TCASII. THE THREAT ACFT WAS DISPLAYED AT 1-2 O'CLOCK POS, APPROX 4-6 MI AND 600-800 FT BELOW US, CLBING. AS THE ACFT CLOSED WITH US, WE TRIED SEVERAL TIMES TO COMMUNICATE OUR CONCERN TO ATC, BUT DUE TO FREQ CONGESTION WE WERE UNABLE TO DO SO. WE THEN RECEIVED A TCASII RA TO CLB. WE CLBED TO APPROX 12250 FT WHEN THE RA CEASED. WE WERE FINALLY ABLE TO NOTIFY ATC OF THE OCCURRENCE AS WE RETURNED TO 12000 FT. AFTER LNDG, I CALLED THE TRACON ON THE PHONE AND THE PERSON THERE (NOT THE CTLR INVOLVED) ADMITTED THAT IT WAS CTLR ERROR AND THAT THEY WERE 'TAKING CARE OF IT.' HE STATED THAT THE OTHER ACFT WAS DEPARTING ATL DUE W TOWARDS THE 'WETWO' FIX (SEE ATL DEP PROC) AND CLRED TO AN ALT ABOVE OURS WHEN THE CTLR TURNED THE ACFT N TOWARDS THE 'NOTWO' FIX WITHOUT TOPPING THE ACFT'S CLB. I ESTIMATE THE ACFT CROSSED OUR ALT AS IT PASSED OFF OUR R SIDE (3 OR 4 O'CLOCK POS) AT 2-3 MI DISTANCE.

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.