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Small transport X unauthorized climb to occupied altitude had less than standard separation from aircraft Y. Pilot deviation.
| Attributes | |
| ACN | 202897 |
| Time | |
| Date | 199202 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : eug |
| State Reference | OR |
| Altitude | msl bound lower : 8000 msl bound upper : 9000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : eug |
| Operator | general aviation : personal |
| Make Model Name | Small Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Experience | controller non radar : 15 controller radar : 1 |
| ASRS Report | 202897 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument |
| Events | |
| Anomaly | altitude deviation : overshoot conflict : airborne less severe non adherence : required legal separation non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 9000 vertical : 300 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Small transport X departed eug IFR climbing to 9000 and was being vectored on course. I instructed small transport X to maintain 8000' because I had IFR aircraft Y at 9000 ft, small transport X acknowledged. I observed small transport X mode C at 8400 ft as he was in the 9000 ft traffic's 11 O'clock, 3 mi, converging. I instructed small transport X to descend immediately to 8000 ft and instructed aircraft Y to turn left immediately. The targets got to within 1 1/2 mi and 300 ft.
Original NASA ASRS Text
Title: SMT X UNAUTHORIZED CLB TO OCCUPIED ALT HAD LTSS FROM ACFT Y. PLTDEV.
Narrative: SMT X DEPARTED EUG IFR CLBING TO 9000 AND WAS BEING VECTORED ON COURSE. I INSTRUCTED SMT X TO MAINTAIN 8000' BECAUSE I HAD IFR ACFT Y AT 9000 FT, SMT X ACKNOWLEDGED. I OBSERVED SMT X MODE C AT 8400 FT AS HE WAS IN THE 9000 FT TFC'S 11 O'CLOCK, 3 MI, CONVERGING. I INSTRUCTED SMT X TO DSND IMMEDIATELY TO 8000 FT AND INSTRUCTED ACFT Y TO TURN LEFT IMMEDIATELY. THE TARGETS GOT TO WITHIN 1 1/2 MI AND 300 FT.
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.