C560 in climb from FL300 to FL340 encountered wake turbulence from an MD11 at FL310.

Attributes
ACN	647400
Time
Date	200502
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : ilc.vortac
State Reference	NV
Altitude	msl bound lower : 30000 msl bound upper : 34000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zlc.artcc tower : phl.tower
Operator	general aviation : corporate
Make Model Name	Citation V
Operating Under FAR Part	Part 91
Navigation In Use	other vortac
Flight Phase	cruise : level
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zlc.artcc
Operator	common carrier : air carrier
Make Model Name	McDonnell Douglas Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 100 flight time total : 4500 flight time type : 11000
ASRS Report	647400
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Events
Anomaly	conflict : airborne less severe inflight encounter : wake turbulence non adherence : clearance other anomaly other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	flight crew : regained aircraft control flight crew : returned to intended or assigned course
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Environmental Factor Airspace Structure FAA
Primary Problem	Airspace Structure

Narrative:

With den center; level FL300. DC10 or MD11 passed over head FL310. Several mins later the aircraft was ahead 5 to 10 mi. We were told by den center to turn left 10 degrees and climb and maintain FL340. As we started to climb we got some buffet then the airplane rolled hard into a 65 to 70 degree bank to the right and turned off the autoplt. I recovered and leveled off FL340; but my heading was 40 degrees (290 degrees) to the right of what we were assigned. We advised ATC that we were unable to fly the assigned heading due to wake turbulence. The controller did not seem to understand our request. He said that the ride reports were good in that area. He then cleared us back direct to ilc and nothing else was said. The new rvsm is going to cause much more wake turbulence problems for small jets at altitude.

Original NASA ASRS Text

Title: C560 IN CLB FROM FL300 TO FL340 ENCOUNTERED WAKE TURB FROM AN MD11 AT FL310.

Narrative: WITH DEN CENTER; LEVEL FL300. DC10 OR MD11 PASSED OVER HEAD FL310. SEVERAL MINS LATER THE ACFT WAS AHEAD 5 TO 10 MI. WE WERE TOLD BY DEN CENTER TO TURN L 10 DEGS AND CLB AND MAINTAIN FL340. AS WE STARTED TO CLB WE GOT SOME BUFFET THEN THE AIRPLANE ROLLED HARD INTO A 65 TO 70 DEG BANK TO THE R AND TURNED OFF THE AUTOPLT. I RECOVERED AND LEVELED OFF FL340; BUT MY HDG WAS 40 DEGS (290 DEGS) TO THE R OF WHAT WE WERE ASSIGNED. WE ADVISED ATC THAT WE WERE UNABLE TO FLY THE ASSIGNED HDG DUE TO WAKE TURB. THE CTLR DID NOT SEEM TO UNDERSTAND OUR REQUEST. HE SAID THAT THE RIDE RPTS WERE GOOD IN THAT AREA. HE THEN CLRED US BACK DIRECT TO ILC AND NOTHING ELSE WAS SAID. THE NEW RVSM IS GOING TO CAUSE MUCH MORE WAKE TURB PROBS FOR SMALL JETS AT ALT.

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.