A321 captain climbing through 10;000 feet; experiences a TCAS TA and queries ATC about traffic at 11...

Narrative:

Captain was flying. Departed clt on zaver 2 departure procedure; bna transition. Aircraft was at about 10;000 feet - 11;000 feet near hedma climbing with ATC clearance to 23;000 feet. On IFR flight plan communicating with atlanta center. Received TCAS traffic advisory (TA) for traffic at 11;500 feet. I challenged ATC with converging traffic information and ATC responded with: yeah; there may be some VFR traffic at 11;500 feet. Received descending TCAS resolution advisory (RA); immediately began descent. After conflict resolved; resumed climb. ATC failed to provide separation with VFR traffic that was communicating with charlotte approach.

Original NASA ASRS Text

Title: A321 Captain climbing through 10;000 feet; experiences a TCAS TA and queries ATC about traffic at 11;500 feet. ATC replies that there is traffic at 11;500 feet as the TCAS changes to a descending RA.

Narrative: Captain was flying. Departed CLT on ZAVER 2 departure procedure; BNA transition. Aircraft was at about 10;000 feet - 11;000 feet near HEDMA climbing with ATC clearance to 23;000 feet. On IFR flight plan communicating with Atlanta Center. Received TCAS traffic advisory (TA) for traffic at 11;500 feet. I challenged ATC with converging traffic information and ATC responded with: Yeah; there may be some VFR traffic at 11;500 feet. Received descending TCAS resolution advisory (RA); immediately began descent. After conflict resolved; resumed climb. ATC failed to provide separation with VFR traffic that was communicating with Charlotte Approach.

Data retrieved from NASA's ASRS site 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.

Attributes
ACN	1246700
Time
Date	201503
Local Time Of Day	0001-0600
Place
Locale Reference	CLT.Airport
State Reference	NC
Environment
Light	Daylight
Aircraft 1
Make Model Name	A321
Operating Under FAR Part	Part 121
Flight Phase	Climb
Route In Use	SID ZAVER2
Flight Plan	IFR
Person 1
Function	Pilot Not Flying First Officer
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict Deviation - Altitude Excursion From Assigned Altitude

A321 captain climbing through 10;000 feet; experiences a TCAS TA and queries ATC about traffic at 11;500 feet. ATC replies that there is traffic at 11;500 feet as the TCAS changes to a descending RA.