Air carrier flight crew experiences a TCAS RA on the gavnn 4 arrival to cvg after being advised of V...

Attributes
ACN	1041433
Time
Date	201210
Local Time Of Day	1201-1800
Place
Locale Reference	CVG.Airport
State Reference	KY
Environment
Flight Conditions	Marginal
Light	Dusk
Aircraft 1
Make Model Name	Light Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	STAR GAVNN4
Aircraft 2
Make Model Name	Cessna Single Piston Undifferentiated or Other Model
Flight Phase	Climb
Flight Plan	VFR
Person 1
Function	First Officer Pilot Flying
Person 2
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Conflict Airborne Conflict

Narrative:

We were on the gavnn four arrival into cvg approaching gavnn. ATC instruction was to cross gavnn at 10;000 ft. ATC gave a traffic alert of a VFR target over gavnn at 9;500 ft and climbing. Acquired target on TCAS and monitored. ATC instructed us to stop descent at 12;000 ft; but it was already too late as we were below that altitude. ATC then said we could just stop at 11;000 ft. We still monitored TCAS and target continued to climb. A TCAS TA went off and eventually; around 200 ft vertical separation a TCAS climb RA was given. As pilot flying; I applied maximum thrust and immediately initiated a climb to comply with the RA. ATC was notified of the RA. Captain said he saw aircraft as we passed and it looked like a high wing cessna. We got clear of conflict at 12;000 ft and leveled off. [We] continued to destination with no further disruptions.

Original NASA ASRS Text

Title: Air Carrier flight crew experiences a TCAS RA on the GAVNN 4 arrival to CVG after being advised of VFR traffic by ATC. The descent is stopped at 11;000 FT and a climb initiated.

Narrative: We were on the GAVNN FOUR Arrival into CVG approaching GAVNN. ATC instruction was to cross GAVNN at 10;000 FT. ATC gave a traffic alert of a VFR target over GAVNN at 9;500 FT and climbing. Acquired target on TCAS and monitored. ATC instructed us to stop descent at 12;000 FT; but it was already too late as we were below that altitude. ATC then said we could just stop at 11;000 FT. We still monitored TCAS and target continued to climb. A TCAS TA went off and eventually; around 200 FT vertical separation a TCAS Climb RA was given. As pilot flying; I applied maximum thrust and immediately initiated a climb to comply with the RA. ATC was notified of the RA. Captain said he saw aircraft as we passed and it looked like a high wing Cessna. We got clear of conflict at 12;000 FT and leveled off. [We] continued to destination with no further disruptions.

Data retrieved from NASA's ASRS site as of July 2013 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.

Air carrier flight crew experiences a TCAS RA on the gavnn 4 arrival to cvg after being advised of VFR traffic by ATC. The descent is stopped at 11;000 ft and a climb initiated.