Narrative:

On landing at mex runway 5R, during the beginning of landing flare, approximately 60 ft AGL, the aircraft was blasted from the right side by wake turbulence, or more accurately, jet engine thrust. Apparently an engine runup was occurring on a ramp area, along the runway threshold to the touchdown zone, resulting in moderate turbulence, just prior to touchdown. The local tower control and ground control denied any knowledge of the engine runup activity at that location. Fortunately, flying with enough airspeed margin, and being blasted perpendicular to the flight path, the duration was very short and the control regained for landing without incident. Our turbulence was unexpected, however our conversation with tower gave a heads up to the following aircraft, which also reported experiencing the jet blast. The controllers did not pass on the information to the aircraft on final approach. In mex, continue to expect the unexpected.

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Original NASA ASRS Text

Title: CAPT OF AN MLG MOMENTARILY LOST CTL OF THE ACFT JUST BEFORE TOUCHDOWN DUE TO AN UNEXPECTED JET BLAST COMING FROM NEAR THE RWY EDGE. TWR DID NOT HAVE ANY EXPLANATION FOR THE JET BLAST, NOR DID THEY ATTEMPT ADVISING THE NEXT FLC TO LAND.

Narrative: ON LNDG AT MEX RWY 5R, DURING THE BEGINNING OF LNDG FLARE, APPROX 60 FT AGL, THE ACFT WAS BLASTED FROM THE R SIDE BY WAKE TURB, OR MORE ACCURATELY, JET ENG THRUST. APPARENTLY AN ENG RUNUP WAS OCCURRING ON A RAMP AREA, ALONG THE RWY THRESHOLD TO THE TOUCHDOWN ZONE, RESULTING IN MODERATE TURB, JUST PRIOR TO TOUCHDOWN. THE LCL TWR CTL AND GND CTL DENIED ANY KNOWLEDGE OF THE ENG RUNUP ACTIVITY AT THAT LOCATION. FORTUNATELY, FLYING WITH ENOUGH AIRSPD MARGIN, AND BEING BLASTED PERPENDICULAR TO THE FLT PATH, THE DURATION WAS VERY SHORT AND THE CTL REGAINED FOR LNDG WITHOUT INCIDENT. OUR TURB WAS UNEXPECTED, HOWEVER OUR CONVERSATION WITH TWR GAVE A HEADS UP TO THE FOLLOWING ACFT, WHICH ALSO RPTED EXPERIENCING THE JET BLAST. THE CTLRS DID NOT PASS ON THE INFO TO THE ACFT ON FINAL APCH. IN MEX, CONTINUE TO EXPECT THE UNEXPECTED.

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.