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Medium large transport was inadvertently descended to an altitude that conflicted with a departing air carrier.
| Attributes | |
| ACN | 113079 |
| Time | |
| Date | 198906 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : mia |
| State Reference | FL |
| Altitude | msl bound lower : 3000 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : mia tower : bos |
| Operator | general aviation : corporate |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| ASRS Report | 113079 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 12000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Severe WX throughout the area, and a runway change had just occurred. The medium large transport was inadvertently issued a descent to 3000 (6000 was standard) and became a conflict with an large transport climbing out of miami airport southbound. Traffic was issued and action taken to separate the aircraft.
Original NASA ASRS Text
Title: MLG WAS INADVERTENTLY DESCENDED TO AN ALT THAT CONFLICTED WITH A DEPARTING ACR.
Narrative: SEVERE WX THROUGHOUT THE AREA, AND A RWY CHANGE HAD JUST OCCURRED. THE MLG WAS INADVERTENTLY ISSUED A DESCENT TO 3000 (6000 WAS STANDARD) AND BECAME A CONFLICT WITH AN LGT CLIMBING OUT OF MIAMI ARPT SBND. TFC WAS ISSUED AND ACTION TAKEN TO SEPARATE THE ACFT.
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.