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Controller climbed aircraft through altitude of another aircraft resulting in loss of separation. Operational error.
| Attributes | |
| ACN | 102587 |
| Time | |
| Date | 198901 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : smb |
| State Reference | WI |
| Altitude | msl bound lower : 7000 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dawn |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 3 |
| ASRS Report | 102587 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Miss Distance | horizontal : 30000 vertical : 600 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
A possible loss of separation between 7000 and 8000' with 4 to 5 miles. When climbing aircraft was approximately 8 miles away from level flight aircraft, I told the climbing aircraft to descend to 7000' and to expedite down. Between 4 and 5 miles a possibility of a loss of separation may have occurred.
Original NASA ASRS Text
Title: CTLR CLIMBED ACFT THROUGH ALT OF ANOTHER ACFT RESULTING IN LOSS OF SEPARATION. OPERATIONAL ERROR.
Narrative: A POSSIBLE LOSS OF SEPARATION BTWN 7000 AND 8000' WITH 4 TO 5 MILES. WHEN CLBING ACFT WAS APPROX 8 MILES AWAY FROM LEVEL FLT ACFT, I TOLD THE CLBING ACFT TO DSND TO 7000' AND TO EXPEDITE DOWN. BTWN 4 AND 5 MILES A POSSIBILITY OF A LOSS OF SEPARATION MAY HAVE OCCURRED.
Data retrieved from NASA's ASRS site as of August 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.