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Either ARTCC radar controller or associate radar controller approved nonstandard altitude for route. Neither controller recognized the situation in sufficient time to resolve the error.
| Attributes | |
| ACN | 410297 |
| Time | |
| Date | 199808 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : yqo |
| State Reference | ON |
| Altitude | msl bound lower : 23000 msl bound upper : 23000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob |
| Operator | common carrier : air carrier |
| Make Model Name | Challenger CL604 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 12 |
| ASRS Report | 410297 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : flight data |
| Qualification | controller : radar |
| Experience | controller radar : 10 |
| ASRS Report | 410298 |
| 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 | none taken : insufficient time |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 24600 vertical : 100 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Wrong altitude was approved and got in conflict with other aircraft.
Original NASA ASRS Text
Title: EITHER ARTCC RADAR CTLR OR ASSOCIATE RADAR CTLR APPROVED NONSTANDARD ALT FOR RTE. NEITHER CTLR RECOGNIZED THE SIT IN SUFFICIENT TIME TO RESOLVE THE ERROR.
Narrative: WRONG ALT WAS APPROVED AND GOT IN CONFLICT WITH OTHER ACFT.
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.