Emb-145 captain reported 'extreme' wake turbulence six miles in trail of a B737 on arrival into dfw.

Attributes
ACN	1283699
Time
Date	201507
Local Time Of Day	1201-1800
Place
Locale Reference	DFW.Airport
State Reference	TX
Environment
Light	Daylight
Aircraft 1
Make Model Name	EMB ERJ 145 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	STAR KLNDR2
Flight Plan	IFR
Aircraft 2
Make Model Name	B737 Undifferentiated or Other Model
Flight Phase	Descent Initial Approach
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Altitude Excursion From Assigned Altitude Inflight Event / Encounter Wake Vortex Encounter

Narrative:

We were on the KLNDR2 RNAV arrival into dfw just prior to dietz at 11;000 ft when we encountered some extreme wake turbulence. The wake turbulence rolled the aircraft; pitched downward; and disconnected the autopilot. We immediately informed ATC of the situation and started to level the aircraft at approximately 10;700 ft. ATC immediately gave us a descent to 8;000 ft so we continued on down. We were told that we were six miles in trail of a 737. The event occurred due to not enough separation between us and the 737. After speaking with ATC on the telephone; they did not think that a 737 wake could be that strong. I believe more separation would avoid future events.

Original NASA ASRS Text

Title: EMB-145 Captain reported 'extreme' wake turbulence six miles in trail of a B737 on arrival into DFW.

Narrative: We were on the KLNDR2 RNAV ARRIVAL into DFW just prior to DIETZ at 11;000 FT when we encountered some extreme wake turbulence. The wake turbulence rolled the aircraft; pitched downward; and disconnected the autopilot. We immediately informed ATC of the situation and started to level the aircraft at approximately 10;700 FT. ATC immediately gave us a descent to 8;000 FT so we continued on down. We were told that we were six miles in trail of a 737. The event occurred due to not enough separation between us and the 737. After speaking with ATC on the telephone; they did not think that a 737 wake could be that strong. I believe more separation would avoid future events.

Data retrieved from NASA's ASRS site 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.