B737-300 encounters wake turbulence from a departing A320 at dtw, mi.

Attributes
ACN	366882
Time
Date	199604
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : zzz airport : dtw
State Reference	MI
Altitude	agl bound lower : 200 agl bound upper : 200
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tower : dtw
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	climbout : takeoff climbout : initial
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude climbout : initial
Route In Use	departure other departure sid : sid
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 250 flight time total : 7400 flight time type : 2000
ASRS Report	366882
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	inflight encounter other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : exited adverse environment flight crew : regained aircraft control
Consequence	Other
Supplementary
Primary Problem	Weather
Air Traffic Incident	other

Narrative:

Encountered severe wake turbulence at 200 ft AGL on takeoff behind an airbus (equivalent in size to a B737, I believe this is an A320). There was normal takeoff spacing behind this non-heavy aircraft. At 200 ft we encountered wake that required full right aileron to counter. Even though total roll to left was only approximately 15 degrees to left the acceleration we felt was very pronounced! Without immediate aileron input the roll to the left would have been much more severe. Even the flight attendant inquired immediately after to see if everything was okay. The experience made me a firm believer that it doesn't take a 'heavy' to cause severe wake turbulence if you hit it just right. Callback conversation with reporter revealed the following information: this reporter took part in the structured callback for wake turbulence. The reporter had a short duration jolt of wake turbulence on departing dtw. He applied full aileron in the opposite direction of the roll, but the aircraft still rolled in the opposite direction. The encounter lasted only 5-6 seconds but was disturbing to the flight crew, as they feel that had they not been on the flight controls to respond immediately, the aircraft would have rolled to a larger bank. Even the flight attendants inquired as to the status of the aircraft after the jolt of turbulence.

Original NASA ASRS Text

Title: B737-300 ENCOUNTERS WAKE TURB FROM A DEPARTING A320 AT DTW, MI.

Narrative: ENCOUNTERED SEVERE WAKE TURB AT 200 FT AGL ON TKOF BEHIND AN AIRBUS (EQUIVALENT IN SIZE TO A B737, I BELIEVE THIS IS AN A320). THERE WAS NORMAL TKOF SPACING BEHIND THIS NON-HVY ACFT. AT 200 FT WE ENCOUNTERED WAKE THAT REQUIRED FULL R AILERON TO COUNTER. EVEN THOUGH TOTAL ROLL TO L WAS ONLY APPROX 15 DEGS TO L THE ACCELERATION WE FELT WAS VERY PRONOUNCED! WITHOUT IMMEDIATE AILERON INPUT THE ROLL TO THE L WOULD HAVE BEEN MUCH MORE SEVERE. EVEN THE FLT ATTENDANT INQUIRED IMMEDIATELY AFTER TO SEE IF EVERYTHING WAS OKAY. THE EXPERIENCE MADE ME A FIRM BELIEVER THAT IT DOESN'T TAKE A 'HVY' TO CAUSE SEVERE WAKE TURB IF YOU HIT IT JUST RIGHT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THIS RPTR TOOK PART IN THE STRUCTURED CALLBACK FOR WAKE TURB. THE RPTR HAD A SHORT DURATION JOLT OF WAKE TURB ON DEPARTING DTW. HE APPLIED FULL AILERON IN THE OPPOSITE DIRECTION OF THE ROLL, BUT THE ACFT STILL ROLLED IN THE OPPOSITE DIRECTION. THE ENCOUNTER LASTED ONLY 5-6 SECONDS BUT WAS DISTURBING TO THE FLC, AS THEY FEEL THAT HAD THEY NOT BEEN ON THE FLT CTLS TO RESPOND IMMEDIATELY, THE ACFT WOULD HAVE ROLLED TO A LARGER BANK. EVEN THE FLT ATTENDANTS INQUIRED AS TO THE STATUS OF THE ACFT AFTER THE JOLT OF TURB.

Data retrieved from NASA's ASRS site as of July 2007 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.