MD80 captain reported to his company a wake turbulence encounter on his previous flight.

Attributes
ACN	531006
Time
Date	200111
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : zfw.artcc
State Reference	TX
Altitude	msl single value : 12000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw.artcc
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : intermediate altitude
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zfw.artcc
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : intermediate altitude
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	531006
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted other
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance Weather
Primary Problem	Ambiguous

Narrative:

Wake turbulence. Nov/tue/01 due to the recent problem encounter in new york, I thought I should debrief a turbulence account on my last trip. We were on the arrival into dfw on the jen 6. The plane in front of us turned out to be a B757 and he was approximately 10 mi ahead. I had descended faster than the B757 and we were about 1500 ft below his altitude on TCASII. The aircraft rolled to the right and then back to the left. The autoplt was engaged and tripped off. I checked with flight attendants and everyone appeared to be ok. I offset the course we were holding to the upwind side and did not have any further problem.

Original NASA ASRS Text

Title: MD80 CAPT RPTED TO HIS COMPANY A WAKE TURB ENCOUNTER ON HIS PREVIOUS FLT.

Narrative: WAKE TURB. NOV/TUE/01 DUE TO THE RECENT PROB ENCOUNTER IN NEW YORK, I THOUGHT I SHOULD DEBRIEF A TURB ACCOUNT ON MY LAST TRIP. WE WERE ON THE ARR INTO DFW ON THE JEN 6. THE PLANE IN FRONT OF US TURNED OUT TO BE A B757 AND HE WAS APPROX 10 MI AHEAD. I HAD DSNDED FASTER THAN THE B757 AND WE WERE ABOUT 1500 FT BELOW HIS ALT ON TCASII. THE ACFT ROLLED TO THE R AND THEN BACK TO THE L. THE AUTOPLT WAS ENGAGED AND TRIPPED OFF. I CHKED WITH FLT ATTENDANTS AND EVERYONE APPEARED TO BE OK. I OFFSET THE COURSE WE WERE HOLDING TO THE UPWIND SIDE AND DID NOT HAVE ANY FURTHER PROB.

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.