D10 controller described a 'wake remnant' separation event discovered a routine tarp audit; the repo...

Attributes
ACN	964323
Time
Date	201108
Local Time Of Day	1801-2400
Place
Locale Reference	D10.TRACON
State Reference	TX
Aircraft 1
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	Vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	EMB ERJ 145 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	Vectors
Flight Plan	IFR
Person 1
Function	Approach Departure
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy

Narrative:

This event was discovered during one of D10's daily tarp audits; 2 hours a day 5 days a week; which no other facility in the country even comes close to. An E145 was following a B757 on the downwind to runway 17C at dfw. I turned the B757 on base and the E145 flew through the 'wake remnant.' the E145 was not directly behind the B757; tarp puts a bubble on the replay when it knows an aircraft has flown through the so called wake remnant. [I] recommend first and foremost give the controllers working the front line the same tools as the FAA is using. We have no way of knowing where the so called 'wake remnant' is and if the FAA is going to use this tool to catch us then it should be made available for us to use it in real life situations.

Original NASA ASRS Text

Title: D10 Controller described a 'wake remnant' separation event discovered a routine TARP audit; the reporter noting the discovery tools use to identify same should be available at the operational positions to determine separation.

Narrative: This event was discovered during one of D10's daily TARP audits; 2 hours a day 5 days a week; which no other facility in the country even comes close to. An E145 was following a B757 on the downwind to Runway 17C at DFW. I turned the B757 on base and the E145 flew through the 'wake remnant.' The E145 was not directly behind the B757; TARP puts a bubble on the replay when it knows an aircraft has flown through the so called wake remnant. [I] recommend first and foremost give the controllers working the front line the same tools as the FAA is using. We have no way of knowing where the so called 'wake remnant' is and if the FAA is going to use this tool to catch us then it should be made available for us to use it in real life situations.

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.

D10 controller described a 'wake remnant' separation event discovered a routine tarp audit; the reporter noting the discovery tools use to identify same should be available at the operational positions to determine separation.