A cpr mdt got wake turbulence behind an air carrier large transport.

Attributes
ACN	261809
Time
Date	199401
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dca
State Reference	DC
Altitude	agl bound lower : 100 agl bound upper : 100
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : dca
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent : approach landing : go around
Route In Use	approach : straight in
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach landing other
Route In Use	approach : straight in
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 98 flight time total : 8500 flight time type : 500
ASRS Report	261809
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	inflight encounter other other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Weather
Air Traffic Incident	other

Narrative:

After an otherwise normal approach, we experienced rather severe wake turbulence at approximately 100 ft AGL. Full aileron deflection was necessary to correct for the roll and a go around maneuver was immediately executed. The preceding aircraft (type unknown) was well clear of the runway and the approach spacing deemed adequate based on TCASII indications. The WX at the time was: 400 ft ceiling 2 mi visibility and calm winds. I subsequently became aware of other reports and even accidents caused by B757 type aircraft. Perhaps this occurrence should be added to the list. (After speaking with the dca supervisor later that evening, he said that there was no way to determine the type of aircraft that we followed from an operation earlier that day. However, I do recall seeing a heavy type aircraft (i.e.: B727 A320, etc. ) On downwind prior to starting the approach.)

Original NASA ASRS Text

Title: A CPR MDT GOT WAKE TURB BEHIND AN ACR LGT.

Narrative: AFTER AN OTHERWISE NORMAL APCH, WE EXPERIENCED RATHER SEVERE WAKE TURB AT APPROX 100 FT AGL. FULL AILERON DEFLECTION WAS NECESSARY TO CORRECT FOR THE ROLL AND A GAR MANEUVER WAS IMMEDIATELY EXECUTED. THE PRECEDING ACFT (TYPE UNKNOWN) WAS WELL CLR OF THE RWY AND THE APCH SPACING DEEMED ADEQUATE BASED ON TCASII INDICATIONS. THE WX AT THE TIME WAS: 400 FT CEILING 2 MI VISIBILITY AND CALM WINDS. I SUBSEQUENTLY BECAME AWARE OF OTHER RPTS AND EVEN ACCIDENTS CAUSED BY B757 TYPE ACFT. PERHAPS THIS OCCURRENCE SHOULD BE ADDED TO THE LIST. (AFTER SPEAKING WITH THE DCA SUPVR LATER THAT EVENING, HE SAID THAT THERE WAS NO WAY TO DETERMINE THE TYPE OF ACFT THAT WE FOLLOWED FROM AN OP EARLIER THAT DAY. HOWEVER, I DO RECALL SEEING A HVY TYPE ACFT (I.E.: B727 A320, ETC. ) ON DOWNWIND PRIOR TO STARTING THE APCH.)

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.