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A320 overshoots runway 30L final after late runway change from runway 30R to runway 30L visual approach. Autopilot fails to capture runway 30L localizer which is reported OTS on ATIS.
| Attributes | |
| ACN | 749032 |
| Time | |
| Date | 200708 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : stl.airport |
| State Reference | MO |
| Altitude | agl single value : 3500 |
| Environment | |
| Flight Conditions | VMC |
| Weather Elements | other |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : t75.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer only : 30l |
| Flight Phase | descent : approach ground : parked |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| ASRS Report | 749032 |
| Events | |
| Anomaly | non adherence : clearance other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended or assigned course |
| Supplementary | |
| Problem Areas | Navigational Facility Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Ambiguous |
Narrative:
Autopilot did not capture localizer. After course correction was made it appeared that the localizer was inoperative. Last minute runway change from runway 30R to runway 30L. Cleared for a visual approach. Overshot final behind a challenger on final for runway 30R. Runway 30L localizer appeared inoperative; glideslope was working. No TCAS TA or RA. Corrected back to runway 30L final and landed. First officer PF. Once it was determined that localizer was inoperative; autoplt was turned off and the visual approach was hand flown. ATIS broadcast that runway 30L localizer is OTS.
Original NASA ASRS Text
Title: A320 OVERSHOOTS RWY 30L FINAL AFTER LATE RWY CHANGE FROM RWY 30R TO RWY 30L VISUAL APPROACH. AUTOPILOT FAILS TO CAPTURE RWY 30L LOC WHICH IS REPORTED OTS ON ATIS.
Narrative: AUTOPILOT DID NOT CAPTURE LOCALIZER. AFTER COURSE CORRECTION WAS MADE IT APPEARED THAT THE LOCALIZER WAS INOP. LAST MINUTE RUNWAY CHANGE FROM RWY 30R TO RWY 30L. CLEARED FOR A VISUAL APPROACH. OVERSHOT FINAL BEHIND A CHALLENGER ON FINAL FOR RWY 30R. RWY 30L LOCALIZER APPEARED INOP; GLIDESLOPE WAS WORKING. NO TCAS TA OR RA. CORRECTED BACK TO RWY 30L FINAL AND LANDED. FO PF. ONCE IT WAS DETERMINED THAT LOCALIZER WAS INOP; AUTOPLT WAS TURNED OFF AND THE VISUAL APPROACH WAS HAND FLOWN. ATIS BROADCAST THAT RWY 30L LOCALIZER IS OTS.
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.