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A ZOB ARTCC radar controller clears a C650 to FL370 then realizes a trailing A321 was outclbing and overtaking the flight and reclrs the C650 to level at FL350.
| Attributes | |
| ACN | 629572 |
| Time | |
| Date | 200409 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : jhw.vor |
| State Reference | NY |
| Altitude | msl bound lower : 35000 msl bound upper : 35300 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | general aviation : corporate |
| Make Model Name | Citation Excel |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | A321 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar pilot : private pilot : instrument |
| Experience | controller radar : 15 flight time total : 2450 |
| ASRS Report | 629572 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Miss Distance | horizontal : 25200 vertical : 1700 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I cleared aircraft X direct to memme intersection and climbed the aircraft to FL370. I then realized the air carrier Y was too close behind and faster. I quickly reclred aircraft X to maintain FL350. Aircraft X went up to FL353 and then descended.
Original NASA ASRS Text
Title: A ZOB ARTCC RADAR CTLR CLRS A C650 TO FL370 THEN REALIZES A TRAILING A321 WAS OUTCLBING AND OVERTAKING THE FLT AND RECLRS THE C650 TO LEVEL AT FL350.
Narrative: I CLRED ACFT X DIRECT TO MEMME INTXN AND CLBED THE ACFT TO FL370. I THEN REALIZED THE ACR Y WAS TOO CLOSE BEHIND AND FASTER. I QUICKLY RECLRED ACFT X TO MAINTAIN FL350. ACFT X WENT UP TO FL353 AND THEN DSNDED.
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.