Narrative:

Atl west; ILS runway 26R; ILS runway 27R sidestep to runway 27L; ILS runway 28; at least twice in the previous 3 days; aircraft cleared for an ILS runway 27R; sidestep runway 27L have reported runway 27L in sight; and then aimed for runway 28! These aircraft got very close to aircraft on the ILS runway 28 final. Atl is becoming a very unsafe airport. Atl used to be very predictable. If you came in from the north you were assigned runway 26R/8L. If you came in from the south; you were assigned runway 27L/9R. Now pilots may be assigned any runway (26R; 27R; 27R sidestep 27L; 27L/8) and put on any downwind from any direction. The controllers are confused; the pilots are confused. No one knows what to expect. The pilots used to be able to brief the approach en route and they would question ATC if assigned something different; providing another layer of safety. Also; flow control is constantly changing the runway after initial contact which further confuses the situation.

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Original NASA ASRS Text

Title: A80 CTLR EXPRESSED CONCERN REGARDING PARALLEL APCH PROCS CURRENTLY UTILIZED.

Narrative: ATL W; ILS RWY 26R; ILS RWY 27R SIDESTEP TO RWY 27L; ILS RWY 28; AT LEAST TWICE IN THE PREVIOUS 3 DAYS; ACFT CLRED FOR AN ILS RWY 27R; SIDESTEP RWY 27L HAVE RPTED RWY 27L IN SIGHT; AND THEN AIMED FOR RWY 28! THESE ACFT GOT VERY CLOSE TO ACFT ON THE ILS RWY 28 FINAL. ATL IS BECOMING A VERY UNSAFE ARPT. ATL USED TO BE VERY PREDICTABLE. IF YOU CAME IN FROM THE N YOU WERE ASSIGNED RWY 26R/8L. IF YOU CAME IN FROM THE S; YOU WERE ASSIGNED RWY 27L/9R. NOW PLTS MAY BE ASSIGNED ANY RWY (26R; 27R; 27R SIDESTEP 27L; 27L/8) AND PUT ON ANY DOWNWIND FROM ANY DIRECTION. THE CTLRS ARE CONFUSED; THE PLTS ARE CONFUSED. NO ONE KNOWS WHAT TO EXPECT. THE PLTS USED TO BE ABLE TO BRIEF THE APCH ENRTE AND THEY WOULD QUESTION ATC IF ASSIGNED SOMETHING DIFFERENT; PROVIDING ANOTHER LAYER OF SAFETY. ALSO; FLOW CTL IS CONSTANTLY CHANGING THE RWY AFTER INITIAL CONTACT WHICH FURTHER CONFUSES THE SITUATION.

Data retrieved from NASA's ASRS site as of January 2009 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.