A CE560 first officer encountered wake vortices from an A340 while landing at ord.

Narrative:

Wake turbulence encounter close to ground. We were following an airbus A340 to [runway] 10C at O'hare. I told the captain that I was going to hand fly the aircraft and stay a dot to two dots high due to the aircraft in front of us. We were at 300 ft AGL and about two dots high on vgli when the airplane started to pitch down and rapidly roll to the left. I was holding the yoke in my right hand and immediately grabbed it with my left hand to apply right aileron to counter the roll. It took me three tries to disconnect the yaw damper. I had to ask the captain to 'help' push the throttles forward as my hands were full. We executed a successful go-around. We were high intentionally to avoid the wake but we hit it anyway. Possibly the [A340] was above the glide path as well. We maintained our assigned speed to keep our distance; and did not slow further as there was traffic behind us. Little jets don't fit in at major airports; plain and simple.

Original NASA ASRS Text

Title: A CE560 First Officer encountered wake vortices from an A340 while landing at ORD.

Narrative: Wake turbulence encounter close to ground. We were following an Airbus A340 to [Runway] 10C at O'Hare. I told the Captain that I was going to hand fly the aircraft and stay a dot to two dots high due to the aircraft in front of us. We were at 300 FT AGL and about two dots high on VGLI when the airplane started to pitch down and rapidly roll to the left. I was holding the yoke in my right hand and immediately grabbed it with my left hand to apply right aileron to counter the roll. It took me three tries to disconnect the yaw damper. I had to ask the Captain to 'help' push the throttles forward as my hands were full. We executed a successful go-around. We were high intentionally to avoid the wake but we hit it anyway. Possibly the [A340] was above the glide path as well. We maintained our assigned speed to keep our distance; and did not slow further as there was traffic behind us. Little jets don't fit in at major airports; plain and simple.

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.

Attributes
ACN	1169095
Time
Date	201405
Local Time Of Day	1201-1800
Place
Locale Reference	ORD.Airport
State Reference	IL
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Citation V/Ultra/Encore (C560)
Operating Under FAR Part	Part 135
Flight Phase	Landing
Aircraft 2
Make Model Name	A340
Operating Under FAR Part	Part 129
Flight Phase	Landing
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Inflight Event / Encounter Wake Vortex Encounter