<< >> NASA ASRS Report 1046322, October 2012

A ce-560 pilot reported a wake vortex encounter inbound to las 8 miles in trail of a widebody aircraft that resulted in a 50 degree roll.

Attributes
ACN	1046322
Time
Date	201210
Local Time Of Day	1201-1800
Place
Locale Reference	LAS.Airport
State Reference	NV
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Citation V/Ultra/Encore (C560)
Operating Under FAR Part	Part 91
Flight Phase	Descent
Route In Use	Vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Widebody Transport
Operating Under FAR Part	Part 121
Flight Phase	Descent
Person 1
Function	Single Pilot Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 20 Flight Crew Total 18700 Flight Crew Type 340
Events
Anomaly	Inflight Event / Encounter Loss Of Aircraft Control Inflight Event / Encounter Wake Vortex Encounter

Narrative:

Our flight was on a vector heading to 320 degrees assigned; descending from 12;000 to 8;000 MSL on the tyssn 3 to las. A [widebody transport] was ahead and lower; approximately 8 miles ahead. While descending; encountered wake turbulence in still air. Aircraft rolled approximately 50 degrees bank with autopilot engaged. Aircraft was in a right turn to begin with and descending to an assigned altitude; 8;000 MSL. TRACON then advised of wake turbulence. I responded that we encountered wake turbulence upset. TRACON leveled our flight at 9;000 MSL. We proceed to a visual approach to runway 19R without further incident.

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Original NASA ASRS Text

Title: A CE-560 pilot reported a wake vortex encounter inbound to LAS 8 miles in trail of a widebody aircraft that resulted in a 50 degree roll.

Narrative: Our flight was on a vector heading to 320 degrees assigned; descending from 12;000 to 8;000 MSL on the TYSSN 3 to LAS. A [widebody transport] was ahead and lower; approximately 8 miles ahead. While descending; encountered wake turbulence in still air. Aircraft rolled approximately 50 degrees bank with autopilot engaged. Aircraft was in a right turn to begin with and descending to an assigned altitude; 8;000 MSL. TRACON then advised of wake turbulence. I responded that we encountered wake turbulence upset. TRACON leveled our flight at 9;000 MSL. We proceed to a visual approach to Runway 19R without further incident.

Data retrieved from NASA's ASRS site as of July 2013 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.