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Stl local controller does not verify incorrect readback and clears an MD80 for takeoff which conflicts with a BE33 directly after departure.
| Attributes | |
| ACN | 523912 |
| Time | |
| Date | 200109 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : stl.airport |
| State Reference | MO |
| Altitude | msl single value : 1600 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : stl.tower |
| Operator | general aviation : personal |
| Make Model Name | Bonanza 33 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure : on vectors |
| Flight Plan | VFR |
| Aircraft 2 | |
| Controlling Facilities | tower : stl.tower |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| ASRS Report | 523912 |
| Person 2 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Events | |
| Anomaly | conflict : airborne critical non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert aircraft equipment : tcas |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 1860 vertical : 0 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I departed BE33 stl to fly 170 degree heading. Apparently BE33 did not receive the assigned heading and flew a 120 degree heading. I then departed MD80 to fly a 125 degree heading. MD80 overtook BE33 and passed him on the right, 1 mi southeast of airport.
Original NASA ASRS Text
Title: STL LCL CTLR DOES NOT VERIFY INCORRECT READBACK AND CLRS AN MD80 FOR TKOF WHICH CONFLICTS WITH A BE33 DIRECTLY AFTER DEP.
Narrative: I DEPARTED BE33 STL TO FLY 170 DEG HDG. APPARENTLY BE33 DID NOT RECEIVE THE ASSIGNED HEADING AND FLEW A 120 DEG HDG. I THEN DEPARTED MD80 TO FLY A 125 DEG HDG. MD80 OVERTOOK BE33 AND PASSED HIM ON THE R, 1 MI SE OF ARPT.
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.