A321 flight crew reported that during descent they got a TCAS RA; so they followed the descent advis...

Attributes
ACN	1534537
Time
Date	201804
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.TRACON
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	A321
Operating Under FAR Part	Part 121
Flight Phase	Descent
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Person 1
Function	First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Conflict NMAC
Miss Distance	Vertical 500

Narrative:

While descending on arrival into ZZZ; we were cleared direct zzzzz intersection and cross zzzzz intersection 6;000. While descending through about 8;500 ft we noticed a proximate threat which became an almost immediate RA descend warning. Captain responded and we were told by approach to increase rate of descent right after the RA. I gained visual contact with the traffic about the time TCAS said adjust vertical rate; and clear of conflict shortly after. Traffic passed 500 feet or so overhead.

Original NASA ASRS Text

Title: A321 flight crew reported that during descent they got a TCAS RA; so they followed the descent advisory.

Narrative: While descending on arrival into ZZZ; we were cleared direct ZZZZZ Intersection and cross ZZZZZ Intersection 6;000. While descending through about 8;500 ft we noticed a proximate threat which became an almost immediate RA descend warning. Captain responded and we were told by approach to increase rate of descent right after the RA. I gained visual contact with the traffic about the time TCAS said adjust vertical rate; and clear of conflict shortly after. Traffic passed 500 feet or so overhead.

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.