Narrative:

At approximately XA00 and just inside of chola intersection on the localizer, we were instructed by approach control to slow to our slowest approach speed. 2 mi later, we were experiencing an increase in ground speed and indicated airspeed. We were told by ATC the aircraft ahead was experiencing a headwind and subsequent reduction in airspeed. We had entered into the shear zone gust front of the frontal zone. ATC instructed us that the spacing was not going to work and to climb to 11000 ft and turn left to a heading of 290 degrees for vectors to runway 34R. We were handed off to the next approach controller, who instructed us to maintain 10000 ft and turn to a heading of 220 degrees and to expect severe turbulence until passing the frontal zone. We were experiencing continuous moderate turbulence. The controller vectored us south of booby intersection by 3 mi and turned us to a heading of 020 degrees to intercept the ILS runway 34R and cleared us for the approach. As we made our left turn to intercept, we reentered the frontal zone where we experienced a strong shear pushing us to the east. During the turn and ensuing drift eastward, the aircraft crossed the localizer for runway 35L. The TCASII showed a target at our 3 O'clock position and 500 ft below. We made visual contact with the target traffic and reported the traffic in sight to ATC. We made a 45 degree banking left turn to correct back to the runway 34R localizer with no further incident.

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Original NASA ASRS Text

Title: B190 LNDG DEN WITH D01, ENCOUNTERED STRONG WINDS, OVERSHOT TURN TO FINAL, AND CONFLICTED WITH TFC ON PARALLEL RWY AT 10000 FT.

Narrative: AT APPROX XA00 AND JUST INSIDE OF CHOLA INTXN ON THE LOC, WE WERE INSTRUCTED BY APCH CTL TO SLOW TO OUR SLOWEST APCH SPD. 2 MI LATER, WE WERE EXPERIENCING AN INCREASE IN GND SPD AND INDICATED AIRSPD. WE WERE TOLD BY ATC THE ACFT AHEAD WAS EXPERIENCING A HEADWIND AND SUBSEQUENT REDUCTION IN AIRSPD. WE HAD ENTERED INTO THE SHEAR ZONE GUST FRONT OF THE FRONTAL ZONE. ATC INSTRUCTED US THAT THE SPACING WAS NOT GOING TO WORK AND TO CLB TO 11000 FT AND TURN L TO A HDG OF 290 DEGS FOR VECTORS TO RWY 34R. WE WERE HANDED OFF TO THE NEXT APCH CTLR, WHO INSTRUCTED US TO MAINTAIN 10000 FT AND TURN TO A HDG OF 220 DEGS AND TO EXPECT SEVERE TURB UNTIL PASSING THE FRONTAL ZONE. WE WERE EXPERIENCING CONTINUOUS MODERATE TURB. THE CTLR VECTORED US S OF BOOBY INTXN BY 3 MI AND TURNED US TO A HDG OF 020 DEGS TO INTERCEPT THE ILS RWY 34R AND CLRED US FOR THE APCH. AS WE MADE OUR L TURN TO INTERCEPT, WE REENTERED THE FRONTAL ZONE WHERE WE EXPERIENCED A STRONG SHEAR PUSHING US TO THE E. DURING THE TURN AND ENSUING DRIFT EASTWARD, THE ACFT CROSSED THE LOC FOR RWY 35L. THE TCASII SHOWED A TARGET AT OUR 3 O'CLOCK POS AND 500 FT BELOW. WE MADE VISUAL CONTACT WITH THE TARGET TFC AND RPTED THE TFC IN SIGHT TO ATC. WE MADE A 45 DEG BANKING L TURN TO CORRECT BACK TO THE RWY 34R LOC WITH NO FURTHER INCIDENT.

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.