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Small aircraft Y uncoord unauthorized penetration of airspace had less than standard separation from air carrier X. System error.
| Attributes | |
| ACN | 248122 |
| Time | |
| Date | 199308 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : den |
| State Reference | CO |
| Altitude | msl bound lower : 7000 msl bound upper : 7000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : den tower : den tower : btr |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Retractable Gear |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Experience | controller non radar : 3 controller radar : 8 |
| ASRS Report | 248122 |
| 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 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 6000 vertical : 200 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Intra Facility Coordination Failure Operational Deviation Operational Error |
Narrative:
I was working the local control-1 position departing aircraft on runways 35R and 35L. It was a little hazy outside, visibility about 7 mi. We had a full blown departure rush going on -- one of the biggest of the day. I just instructed air carrier X to contact departure when I noticed small aircraft Y 3 mi north of the airport at 7000 ft MSL. I immediately tried to contact dr-1 (departure control) to ensure they issued traffic. I overheard traffic being issued. I then issued traffic to air carrier Z who had just departed runway 35R. I then informed my supervisor of the situation. He called to the TRACON, since small aircraft Y was in my airspace without my approval. He told me they would take care of the situation. Small aircraft Y was then turned away from the airport to the satellite airport where he was landing. I then continued to depart aircraft. A close call was avoided, I think.
Original NASA ASRS Text
Title: SMA Y UNCOORD UNAUTH PENETRATION OF AIRSPACE HAD LTSS FROM ACR X. SYS ERROR.
Narrative: I WAS WORKING THE LC-1 POS DEPARTING ACFT ON RWYS 35R AND 35L. IT WAS A LITTLE HAZY OUTSIDE, VISIBILITY ABOUT 7 MI. WE HAD A FULL BLOWN DEP RUSH GOING ON -- ONE OF THE BIGGEST OF THE DAY. I JUST INSTRUCTED ACR X TO CONTACT DEP WHEN I NOTICED SMA Y 3 MI N OF THE ARPT AT 7000 FT MSL. I IMMEDIATELY TRIED TO CONTACT DR-1 (DEP CTL) TO ENSURE THEY ISSUED TFC. I OVERHEARD TFC BEING ISSUED. I THEN ISSUED TFC TO ACR Z WHO HAD JUST DEPARTED RWY 35R. I THEN INFORMED MY SUPVR OF THE SIT. HE CALLED TO THE TRACON, SINCE SMA Y WAS IN MY AIRSPACE WITHOUT MY APPROVAL. HE TOLD ME THEY WOULD TAKE CARE OF THE SIT. SMA Y WAS THEN TURNED AWAY FROM THE ARPT TO THE SATELLITE ARPT WHERE HE WAS LNDG. I THEN CONTINUED TO DEPART ACFT. A CLOSE CALL WAS AVOIDED, I THINK.
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.