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B737 crew deviates from lda causing concern for ATC who has paralleling traffic on adjacent runway ILS at stl.
| Attributes | |
| ACN | 458660 |
| Time | |
| Date | 199912 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : stl.airport |
| State Reference | MO |
| Altitude | agl single value : 2000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : stl.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils other localizer |
| Flight Phase | descent : approach |
| Route In Use | approach other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : stl.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 30r |
| Route In Use | approach : instrument precision |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : atp |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 240 flight time total : 11000 flight time type : 5500 |
| ASRS Report | 458660 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance non adherence : published procedure other spatial deviation |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued alert |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Captain was flying lda runway 30L at stl. We broke out at approximately 7 mi on lda. At that point, captain turned toward the runway when he should have continued on lda until 4.4 DME. As we turned toward runway, the tower asked if we had traffic for runway 30R in sight. We had the traffic in sight the entire time that we were VMC. We had briefed the approach, but I guess we should've emphasized the point when we would turn toward the runway.
Original NASA ASRS Text
Title: B737 CREW DEVIATES FROM LDA CAUSING CONCERN FOR ATC WHO HAS PARALLELING TFC ON ADJACENT RWY ILS AT STL.
Narrative: CAPT WAS FLYING LDA RWY 30L AT STL. WE BROKE OUT AT APPROX 7 MI ON LDA. AT THAT POINT, CAPT TURNED TOWARD THE RWY WHEN HE SHOULD HAVE CONTINUED ON LDA UNTIL 4.4 DME. AS WE TURNED TOWARD RWY, THE TWR ASKED IF WE HAD TFC FOR RWY 30R IN SIGHT. WE HAD THE TFC IN SIGHT THE ENTIRE TIME THAT WE WERE VMC. WE HAD BRIEFED THE APCH, BUT I GUESS WE SHOULD'VE EMPHASIZED THE POINT WHEN WE WOULD TURN TOWARD THE RWY.
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.