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ZAB controller described a loss of separation with two en route aircraft when coordination regarding altitude assignment was in error and attempts to issue new clearance were not in time.
| Attributes | |
| ACN | 876123 |
| Time | |
| Date | 201003 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZAB.ARTCC |
| State Reference | NM |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Route In Use | None |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Route In Use | None |
| Flight Plan | IFR |
| Person 1 | |
| Function | Enroute |
| Qualification | Air Traffic Control Fully Certified |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy |
| Miss Distance | Horizontal 18000 Vertical 800 |
Narrative:
Sector 91 was briefed that aircraft Y was stopped at FL280 for aircraft X at FL300. The conflict alert went off and I noticed aircraft Y at FL286 and tried to stop aircraft at FL290 the aircraft reported that he was through FL290 and would go back down. Recommendation; could have climbed aircraft to FL290; wrong for direction or verified assigned altitude of aircraft Y.
Original NASA ASRS Text
Title: ZAB Controller described a loss of separation with two en route aircraft when coordination regarding altitude assignment was in error and attempts to issue new clearance were not in time.
Narrative: Sector 91 was briefed that Aircraft Y was stopped at FL280 for Aircraft X at FL300. The conflict alert went off and I noticed Aircraft Y at FL286 and tried to stop aircraft at FL290 the aircraft reported that he was through FL290 and would go back down. Recommendation; could have climbed aircraft to FL290; wrong for direction or verified assigned altitude of Aircraft Y.
Data retrieved from NASA's ASRS site as of April 2012 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.