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Light transport Y climb through occupied altitude had less than standard separation from air carrier X. System error.
| Attributes | |
| ACN | 242929 |
| Time | |
| Date | 199305 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : lvt |
| State Reference | KY |
| Altitude | msl bound lower : 35000 msl bound upper : 35000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid |
| Operator | general aviation : personal |
| Make Model Name | Light Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| 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 non radar : 4 controller radar : 3 |
| ASRS Report | 242929 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 24000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I was the controller involved who climbed light transport Y to FL370 above air carrier X at FL350. The light transport Y assured me he could be level at FL370 in plenty of time. When it became obvious the light transport Y could not make it in time, I turned both aircraft. The turns did not achieve sufficient separation. I should have initiated turns earlier.
Original NASA ASRS Text
Title: LTT Y CLB THROUGH OCCUPIED ALT HAD LTSS FROM ACR X. SYS ERROR.
Narrative: I WAS THE CTLR INVOLVED WHO CLBED LTT Y TO FL370 ABOVE ACR X AT FL350. THE LTT Y ASSURED ME HE COULD BE LEVEL AT FL370 IN PLENTY OF TIME. WHEN IT BECAME OBVIOUS THE LTT Y COULD NOT MAKE IT IN TIME, I TURNED BOTH ACFT. THE TURNS DID NOT ACHIEVE SUFFICIENT SEPARATION. I SHOULD HAVE INITIATED TURNS EARLIER.
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.