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A climbing aircraft came close to aircraft at FL240 without standard separation being maintained by ATC.
| Attributes | |
| ACN | 160768 |
| Time | |
| Date | 199010 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : dan |
| State Reference | VA |
| Altitude | msl bound lower : 24000 msl bound upper : 24000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc |
| Operator | general aviation : corporate |
| Make Model Name | Light Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| 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 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 11 |
| ASRS Report | 160768 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : developmental |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 18000 vertical : 300 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Light transport was cleared to FL290 and medium large transport was at FL240. The aircraft were not considered to be in conflict because of the distance between them. Other situations were developing which required attention. When I saw the situation in question, I responded promptly. Both aircraft were issued 'immediate' clrncs for sep, but I do not feel that the xmissions actually transmitted. This situation occurred during live OJT.
Original NASA ASRS Text
Title: A CLIMBING ACFT CAME CLOSE TO ACFT AT FL240 WITHOUT STANDARD SEPARATION BEING MAINTAINED BY ATC.
Narrative: LTT WAS CLRED TO FL290 AND MLG WAS AT FL240. THE ACFT WERE NOT CONSIDERED TO BE IN CONFLICT BECAUSE OF THE DISTANCE BTWN THEM. OTHER SITUATIONS WERE DEVELOPING WHICH REQUIRED ATTN. WHEN I SAW THE SITUATION IN QUESTION, I RESPONDED PROMPTLY. BOTH ACFT WERE ISSUED 'IMMEDIATE' CLRNCS FOR SEP, BUT I DO NOT FEEL THAT THE XMISSIONS ACTUALLY XMITTED. THIS SITUATION OCCURRED DURING LIVE OJT.
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.