Wake of a heavy airbus on a parallel runway 6 miles ahead at dtw results in a go around after the se...

Attributes
ACN	738765
Time
Date	200705
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dtw.airport
State Reference	MI
Altitude	agl single value : 1000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : dtw.tower
Operator	common carrier : air carrier
Make Model Name	Regional Jet 200 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : dtw.tower
Make Model Name	Airbus Industrie Undifferentiated or Other Model
Flight Phase	descent : approach
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 240 flight time total : 5600 flight time type : 1200
ASRS Report	738765
Events
Anomaly	inflight encounter : wake turbulence
Independent Detector	other flight crewa
Resolutory Action	flight crew : executed go around
Supplementary
Problem Areas	Environmental Factor
Primary Problem	Environmental Factor

Narrative:

During landing at dtw airport we encountered wake turbulence for a preceding heavy airbus 6 miles ahead on runway 22R. We were between one and two thousand ft AGL when we first encountered a large deviation in heading and airspeed from the wake of the heavy aircraft on approach. After the first encounter we determined that it was not due to wind and asked to verify what type of aircraft was ahead of us. The controller mentioned that we were following a heavy airbus 6 miles ahead and then we realized that there was a slight crosswind from the right bringing their wake into our approach. After a second encounter with the turbulence we decided to go around and eliminate the hazard of following such an aircraft. Dtw should not have aircraft so close to a heavy on approach with a crosswind that can possibly cross into an approach of a close parallel approach.

Original NASA ASRS Text

Title: WAKE OF A HEAVY AIRBUS ON A PARALLEL RWY 6 MILES AHEAD AT DTW RESULTS IN A GAR AFTER THE SECOND ENCOUNTER.

Narrative: DURING LNDG AT DTW ARPT WE ENCOUNTERED WAKE TURBULENCE FOR A PRECEDING HEAVY AIRBUS 6 MILES AHEAD ON RWY 22R. WE WERE BETWEEN ONE AND TWO THOUSAND FT AGL WHEN WE FIRST ENCOUNTERED A LARGE DEVIATION IN HEADING AND AIRSPEED FROM THE WAKE OF THE HEAVY ACFT ON APCH. AFTER THE FIRST ENCOUNTER WE DETERMINED THAT IT WAS NOT DUE TO WIND AND ASKED TO VERIFY WHAT TYPE OF ACFT WAS AHEAD OF US. THE CTLR MENTIONED THAT WE WERE FOLLOWING A HEAVY AIRBUS 6 MILES AHEAD AND THEN WE REALIZED THAT THERE WAS A SLIGHT CROSSWIND FROM THE R BRINGING THEIR WAKE INTO OUR APCH. AFTER A SECOND ENCOUNTER WITH THE TURBULENCE WE DECIDED TO GAR AND ELIMINATE THE HAZARD OF FOLLOWING SUCH AN ACFT. DTW SHOULD NOT HAVE ACFT SO CLOSE TO A HEAVY ON APCH WITH A CROSSWIND THAT CAN POSSIBLY CROSS INTO AN APCH OF A CLOSE PARALLEL APCH.

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.

Wake of a heavy airbus on a parallel runway 6 miles ahead at dtw results in a go around after the second encounter.