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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Air carrier X uncoord unauthorized penetration of departure control airspace had less than standard separation from widebody transport. System error.
| Attributes | |
| ACN | 242376 |
| Time | |
| Date | 199305 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : orl |
| State Reference | FL |
| Altitude | msl bound lower : 8000 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : mco |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | descent other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller military : 2 controller radar : 12 controller supervisory : 2 |
| ASRS Report | 242376 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Miss Distance | horizontal : 6000 vertical : 300 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error Inter Facility Coordination Failure |
Narrative:
I'm not sure if the problem was controller error or pilot error. Normal descent for arrs in that area is 9000 ft with departures climbing to 8000 ft. I think I mistakenly issued instructions for a turboprop air carrier X to descend to 6000 ft. I was made aware of the situation when the pilot of the aircraft asked about a widebody transport climbing out behind him and off his left. I initially believed air carrier X had taken descent instructions intended for another aircraft. I had some doubt. The controller working the departure asked if visual separation was being applied and I replied in the affirmative since air carrier X did in fact see the widebody transport and the widebody transport would pass behind the turboprop.
Original NASA ASRS Text
Title: ACR X UNCOORD UNAUTH PENETRATION OF DEP CTL AIRSPACE HAD LTSS FROM WDB. SYS ERROR.
Narrative: I'M NOT SURE IF THE PROB WAS CTLR ERROR OR PLT ERROR. NORMAL DSCNT FOR ARRS IN THAT AREA IS 9000 FT WITH DEPS CLBING TO 8000 FT. I THINK I MISTAKENLY ISSUED INSTRUCTIONS FOR A TURBOPROP ACR X TO DSND TO 6000 FT. I WAS MADE AWARE OF THE SIT WHEN THE PLT OF THE ACFT ASKED ABOUT A WDB CLBING OUT BEHIND HIM AND OFF HIS L. I INITIALLY BELIEVED ACR X HAD TAKEN DSCNT INSTRUCTIONS INTENDED FOR ANOTHER ACFT. I HAD SOME DOUBT. THE CTLR WORKING THE DEP ASKED IF VISUAL SEPARATION WAS BEING APPLIED AND I REPLIED IN THE AFFIRMATIVE SINCE ACR X DID IN FACT SEE THE WDB AND THE WDB WOULD PASS BEHIND THE TURBOPROP.
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.