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Tul approach controller experienced operational error at 10000 ft with departure and arrival aircraft when failing to restrict departure below arrival aircraft.
| Attributes | |
| ACN | 731883 |
| Time | |
| Date | 200703 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : tul.vortac |
| State Reference | OK |
| Altitude | msl single value : 10000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : tul.tracon |
| Operator | general aviation : personal |
| Make Model Name | Citationjet C525/C526 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : takeoff |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : tul.tracon |
| Operator | general aviation : corporate |
| Make Model Name | Citation III VI VII |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar controller : military |
| Experience | controller military : 2 controller radar : 18 controller time certified in position1 : 10 |
| ASRS Report | 731883 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 15000 vertical : 7000 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I was working combined sectors; I had an arrival; C650; inbound from 40 mi south of tul 15000 ft descending to 10000 ft. I had a departure C525 climbing from a satellite airport I assigned 10000 ft headed sbound. I got very busy very quickly and the C525 climbed very rapidly; 9000 ft in 15 mi; and when I amended his (C525) altitude to 9000 ft he was already at 8700 ft. The 2 aircraft passed about 2 1/2 mi apart and 600 ft vertical. The supervisor in the TRACON was leaving the sectors combined longer because we have been short staffed. It was my responsibility to get help sooner. I should have made sure another sector was opened; regardless of staffing.
Original NASA ASRS Text
Title: TUL APCH CTLR EXPERIENCED OPERROR AT 10000 FT WITH DEP AND ARR ACFT WHEN FAILING TO RESTRICT DEP BELOW ARR ACFT.
Narrative: I WAS WORKING COMBINED SECTORS; I HAD AN ARR; C650; INBOUND FROM 40 MI S OF TUL 15000 FT DSNDING TO 10000 FT. I HAD A DEP C525 CLBING FROM A SATELLITE ARPT I ASSIGNED 10000 FT HEADED SBOUND. I GOT VERY BUSY VERY QUICKLY AND THE C525 CLBED VERY RAPIDLY; 9000 FT IN 15 MI; AND WHEN I AMENDED HIS (C525) ALT TO 9000 FT HE WAS ALREADY AT 8700 FT. THE 2 ACFT PASSED ABOUT 2 1/2 MI APART AND 600 FT VERT. THE SUPVR IN THE TRACON WAS LEAVING THE SECTORS COMBINED LONGER BECAUSE WE HAVE BEEN SHORT STAFFED. IT WAS MY RESPONSIBILITY TO GET HELP SOONER. I SHOULD HAVE MADE SURE ANOTHER SECTOR WAS OPENED; REGARDLESS OF STAFFING.
Data retrieved from NASA's ASRS site as of January 2009 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.