An air carrier B757 flight crew was told to comply with the airspds on the STAR and they did so, but they closed the distance between them and an MD80 that was ahead of them. The approach gave the MD80 a vector to separate the traffic.

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Attributes
ACN	386270
Time
Date	199711
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : jen airport : dfw
State Reference	TX
Altitude	msl bound lower : 15000 msl bound upper : 15000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw tracon : dfw
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	arrival other arrival star : star
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	descent other
Route In Use	arrival other arrival star : star
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	386270
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
ASRS Report	386271
Events
Anomaly	other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other

Narrative:

Descending into dfw on the glenrose arrival, passing through approximately 15000 ft ZFW (135.37) said to comply with the airspds on the arrival after hirst intersection. We accelerated. Approaching hirst we decelerated and were instructed to contact dfw approach (133.62). Visually noted traffic at 11000 ft on the arrival, contacted approach, verified previous clearance, approach told us to slow to 250 KTS. MD80 told to turn to 090 degree heading. We continued arrival and approach as published.

Original NASA ASRS Text

Title: AN ACR B757 FLC WAS TOLD TO COMPLY WITH THE AIRSPDS ON THE STAR AND THEY DID SO, BUT THEY CLOSED THE DISTANCE BTWN THEM AND AN MD80 THAT WAS AHEAD OF THEM. THE APCH GAVE THE MD80 A VECTOR TO SEPARATE THE TFC.

Narrative: DSNDING INTO DFW ON THE GLENROSE ARR, PASSING THROUGH APPROX 15000 FT ZFW (135.37) SAID TO COMPLY WITH THE AIRSPDS ON THE ARR AFTER HIRST INTXN. WE ACCELERATED. APCHING HIRST WE DECELERATED AND WERE INSTRUCTED TO CONTACT DFW APCH (133.62). VISUALLY NOTED TFC AT 11000 FT ON THE ARR, CONTACTED APCH, VERIFIED PREVIOUS CLRNC, APCH TOLD US TO SLOW TO 250 KTS. MD80 TOLD TO TURN TO 090 DEG HDG. WE CONTINUED ARR AND APCH AS PUBLISHED.

Data retrieved from NASA's ASRS site as of July 2007 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.