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Less than standard separation between military fgt flight and an small transport descending on an arrival route. ARTCC controller working combined position operation.
| Attributes | |
| ACN | 161699 |
| Time | |
| Date | 199011 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : ott |
| State Reference | MO |
| Altitude | msl bound lower : 12000 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc |
| Operator | other |
| Make Model Name | Fighter |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : corporate |
| Make Model Name | Small Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent other |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 7 |
| ASRS Report | 161699 |
| Person 2 | |
| Affiliation | government : military |
| Function | flight crew : single pilot |
| Qualification | pilot : military |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 18000 vertical : 500 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Fgt X, a flight of 8, got off from nsf on an incorrect route. Turned so unexpectedly, but correctly for filed route and turned into small transport Y descending on the DPNT3 arrival into phl. Fgt X was given an immediate left turn to 360 degrees and small transport Y an expeditious descent through 16000'. Small transport Y reported out of 14800'. Aircraft were cleared on course. The best solution to this and many other similar situations is to have 2 controllers on position as the sectors were designed for.
Original NASA ASRS Text
Title: LESS THAN STANDARD SEPARATION BETWEEN MIL FGT FLT AND AN SMT DESCENDING ON AN ARR ROUTE. ARTCC CTLR WORKING COMBINED POSITION OPERATION.
Narrative: FGT X, A FLT OF 8, GOT OFF FROM NSF ON AN INCORRECT RTE. TURNED SO UNEXPECTEDLY, BUT CORRECTLY FOR FILED RTE AND TURNED INTO SMT Y DSNDING ON THE DPNT3 ARR INTO PHL. FGT X WAS GIVEN AN IMMEDIATE LEFT TURN TO 360 DEGS AND SMT Y AN EXPEDITIOUS DSNT THROUGH 16000'. SMT Y RPTED OUT OF 14800'. ACFT WERE CLRED ON COURSE. THE BEST SOLUTION TO THIS AND MANY OTHER SIMILAR SITUATIONS IS TO HAVE 2 CTLRS ON POS AS THE SECTORS WERE DESIGNED FOR.
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.