A80 controller voiced concern regarding RNAV STAR procedures; alleging flight crews have questioned;...

Attributes
ACN	831266
Time
Date	200904
Local Time Of Day	0601-1200
Place
Locale Reference	ATL.Airport
State Reference	GA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 200 ER/LR (CRJ200)
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Route In Use	Other RNAV
Flight Plan	IFR
Aircraft 2
Make Model Name	Regional Jet 700 ER/LR (CRJ700)
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Route In Use	Other RNAV
Flight Plan	IFR
Person 1
Function	Approach
Qualification	Air Traffic Control Fully Certified Flight Crew Instrument
Experience	Air Traffic Control Radar 7
Events
Anomaly	Other STARS Procedures

Narrative:

RNAV STAR's into atl continue to show the altitude restrictions and speed restrictions on the plates; causing much confusion and lack of understanding by the pilots. In this incident; the CRJ2 and CRJ7 were supposed to slow to 210 KTS at a specified point and did not; therefore closing the lateral separation requirements. One aircraft had to be stopped at an altitude above the proceeding aircraft to ensure separation. This is a continuing problem that has been going on for over a year now. There is absolutely no excuse for these charts not to have been changed by now. This is an everyday occurrence at atl and has already led to one operational error.callback conversation with reporter revealed the following information: the reporter indicated that some flight crews are complying with the subject speed and altitude restrictions and some are not; making controller separation decisions difficult. The reporter surmised that some of the confusion may have resulted from the fact that the initial start up of the atl RNAV procedures had to be canceled and restarted sometime later because of separation issues.

Original NASA ASRS Text

Title: A80 Controller voiced concern regarding RNAV STAR procedures; alleging flight crews have questioned; and not always complied with altitude/speed restrictions; adding; separation issues have resulted because of the uncertainty.

Narrative: RNAV STAR's into ATL continue to show the altitude restrictions and speed restrictions on the plates; causing much confusion and lack of understanding by the pilots. In this incident; the CRJ2 and CRJ7 were supposed to slow to 210 KTS at a specified point and did not; therefore closing the lateral separation requirements. One aircraft had to be stopped at an altitude above the proceeding aircraft to ensure separation. This is a continuing problem that has been going on for over a year now. There is absolutely no excuse for these charts not to have been changed by now. This is an everyday occurrence at ATL and has already led to one operational error.Callback conversation with reporter revealed the following information: The reporter indicated that some flight crews are complying with the subject speed and altitude restrictions and some are not; making controller separation decisions difficult. The reporter surmised that some of the confusion may have resulted from the fact that the initial start up of the ATL RNAV procedures had to be canceled and restarted sometime later because of separation issues.

Data retrieved from NASA's ASRS site as of April 2012 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.

A80 controller voiced concern regarding RNAV STAR procedures; alleging flight crews have questioned; and not always complied with altitude/speed restrictions; adding; separation issues have resulted because of the uncertainty.