Pilot reported being on a visual approach into atlanta; slowing for separation; and then after landi...

Attributes
ACN	1633476
Time
Date	201904
Local Time Of Day	1201-1800
Place
Locale Reference	ATL.Airport
State Reference	GA
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 123 Flight Crew Total 15309 Flight Crew Type 9362
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict Deviation - Speed All Types

Narrative:

On approach to atl runway 26R outside of ajaay was told cleared the visual 26R behind aircraft Y maintain 160 knots to ajaay. Outside of ajaay we noticed that the separation between aircraft Y and our aircraft was 3 miles and decreasing. At 160 kts we were overrunning aircraft Y in front of us. We decided to slow down as we felt this was the safest course of action! Inside of ajaay; tower asked why we slowed I replied over running traffic in front of us. After exiting the runway we were instructed to contact TRACON. In my conversation with xxx (TRACON) I reiterated our concern for safety and closing in on traffic. He specifically stated that atlanta runs 2 miles separation on visuals. I was not aware of this nor have I been able to find reference of this in either the 10-1B or 10-7 pages for atl.

Original NASA ASRS Text

Title: Pilot reported being on a visual approach into Atlanta; slowing for separation; and then after landing being told by TRACON that they should not have slowed.

Narrative: On approach to ATL Runway 26R outside of AJAAY was told cleared the Visual 26R behind Aircraft Y maintain 160 knots to AJAAY. Outside of AJAAY we noticed that the separation between Aircraft Y and our aircraft was 3 miles and decreasing. At 160 kts we were overrunning Aircraft Y in front of us. We decided to slow down as we felt this was the safest course of action! Inside of AJAAY; Tower asked why we slowed I replied over running traffic in front of us. After exiting the runway we were instructed to contact TRACON. In my conversation with xxx (TRACON) I reiterated our concern for safety and closing in on traffic. He specifically stated that Atlanta runs 2 miles separation on visuals. I was not aware of this nor have I been able to find reference of this in either the 10-1B or 10-7 pages for ATL.

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.

Pilot reported being on a visual approach into atlanta; slowing for separation; and then after landing being told by TRACON that they should not have slowed.