Narrative:

Visual approach at st louis lambert field to 12 right. Wind reported 050 degrees at 15 KTS. Widebody transport aircraft sitting on taxiway C upwind and near 12 right with jet wash blowing across T/D zone of 12R. Widebody transport had crossed 12R and preparing for takeoff on 12L. At night he only had navigation lights on and his power was at unknown level. I was landing a medium large transport aircraft and was approximately 3 to 5' in air with power off, tracking the centerline when I encountered the widebody transport jet blast of unknown intensity. The aircraft went sideways to the downwind side and almost went off the runway. I managed to put aircraft down before leaving pavement and good traction prevented an accident. A go around was not possible. The st louis airport could easily avoid this and other potential problems by assigning heavy jets the downwind runway for takeoff and landing. This is not my only bad experience with heavy jets at st louis and all could have been avoided by assigning the heavy jet the downwind runway.

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Original NASA ASRS Text

Title: ACR MLG STRUCK BY JET WASH FROM ACR WDB HOLDING FOR PARALLEL RWY NEARLY LOOSES ACFT CONTROL.

Narrative: VISUAL APCH AT ST LOUIS LAMBERT FIELD TO 12 RIGHT. WIND RPTED 050 DEGS AT 15 KTS. WDB ACFT SITTING ON TXWY C UPWIND AND NEAR 12 R WITH JET WASH BLOWING ACROSS T/D ZONE OF 12R. WDB HAD CROSSED 12R AND PREPARING FOR TKOF ON 12L. AT NIGHT HE ONLY HAD NAV LIGHTS ON AND HIS PWR WAS AT UNKNOWN LEVEL. I WAS LNDG A MLG ACFT AND WAS APPROX 3 TO 5' IN AIR WITH PWR OFF, TRACKING THE CENTERLINE WHEN I ENCOUNTERED THE WDB JET BLAST OF UNKNOWN INTENSITY. THE ACFT WENT SIDEWAYS TO THE DOWNWIND SIDE AND ALMOST WENT OFF THE RWY. I MANAGED TO PUT ACFT DOWN BEFORE LEAVING PAVEMENT AND GOOD TRACTION PREVENTED AN ACCIDENT. A GO AROUND WAS NOT POSSIBLE. THE ST LOUIS ARPT COULD EASILY AVOID THIS AND OTHER POTENTIAL PROBS BY ASSIGNING HEAVY JETS THE DOWNWIND RWY FOR TKOF AND LNDG. THIS IS NOT MY ONLY BAD EXPERIENCE WITH HEAVY JETS AT ST LOUIS AND ALL COULD HAVE BEEN AVOIDED BY ASSIGNING THE HEAVY JET THE DOWNWIND RWY.

Data retrieved from NASA's ASRS site as of August 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.