P50 controller described incident when a CRJ200 following a B737 encountered the B737's wake at 11000 ft causing a 35 degree roll.

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Attributes
ACN	707047
Time
Date	200608
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : iwa.vortac
State Reference	AZ
Altitude	msl single value : 11000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : p50.tracon
Operator	common carrier : air carrier
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival star : arlin3
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : p50.tracon
Operator	common carrier : air carrier
Make Model Name	Regional Jet 200 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival star : arlin3
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	pilot : instrument
Experience	controller radar : 20 controller time certified in position1 : 8 flight time total : 1800
ASRS Report	707047
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	inflight encounter : wake turbulence
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Airspace Structure Aircraft
Primary Problem	Aircraft

Narrative:

Crj-200 trailing B737-700 (winglets) on arlin 3 STAR by 7 NM. Both aircraft assigned 11000 ft and 250 KTS per STAR. Crj pilot complained of wake from B73W; causing 35 degree roll. Pilot requested 10 degree turn to offset track. Do winglets increase or decrease vortex generation?

Original NASA ASRS Text

Title: P50 CTLR DESCRIBED INCIDENT WHEN A CRJ200 FOLLOWING A B737 ENCOUNTERED THE B737'S WAKE AT 11000 FT CAUSING A 35 DEG ROLL.

Narrative: CRJ-200 TRAILING B737-700 (WINGLETS) ON ARLIN 3 STAR BY 7 NM. BOTH ACFT ASSIGNED 11000 FT AND 250 KTS PER STAR. CRJ PLT COMPLAINED OF WAKE FROM B73W; CAUSING 35 DEG ROLL. PLT REQUESTED 10 DEG TURN TO OFFSET TRACK. DO WINGLETS INCREASE OR DECREASE VORTEX GENERATION?

Data retrieved from NASA's ASRS site as of January 2009 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.